Aster is a New SSR Simulacra that is introduced into Tower of Fantasy. Guide on which characters Aster team up with, matrices build, skills & gift list.
Table of Contents
Character & Weapon Banner Info
Aster is a New SSR Tank DPS Simulacra. She was born on February 28 in a town called Hope Fleet. She made her first debut on 24, June 2025 and is ready to explore the world of Tower of Fantasy with her Twin Stars as the main weapon.
- EN Voice Actor: Madeleine Dee
- JP Voice Actor: Tomoyo Takayanagi 高柳知葉
- Chinese Voice Actor: Jing Liu 井琉
How to Get Aster Simulacra
This simulacra is a limited-time offer character. In order, to get her you need to spend Red Nucleus on the limited time called Scarlet Starfire.
How to Get Aster Matrices
This matrix is also a limited-time offer. You can go to Scarlet Starfire switch to matrix special order and spend a Special Voucher to get all of her chips.
Aster - 2 Piece Set: Increases Physical ATK by 26%/28%/30%/32%, boosting Final damage by 3% per target killed, up to 2 stacks, lasting for 60s. This set effect works in the off-hand slot, and only the set with the highest star rating will take effect.
Aster - 4 Piece Set: Increases all elemental damage by 21%/25%/29%/33%. Equip Twin Stars to increase Final damage by an extra 11%. Increases sahtter by 100% when Fortitude Resonance is triggered. This set effect works in the off-hand slot, and only the set with the highest star rating will take effect.
Weapon Stats & Effects
- Weapon Name: Twin Stars
- Type Effect: Armor Dissolve (Physical & Flame)
- Shatter: 16.00
- Charge: 14.00
- Attack: 19
- Crit: 13
- HP: 1165
Weapon Elemental Resonance
Elemental Type Fusion of Mass and Flame: When the weapon deals damage, damage is calculated using the highest equipped physical/flame base ATK, the highest equipped physical/flame ATK percentage, and the highest equipped physicall/flame damage boost, and the weapon is considered both a physical and flame weapon.
Physical Resonance: Increases Physical ATK by 15% and Physical Resistance by 25%. Activate by equipping 2 or more Physical Weapons. This set effect works in the off-hand slot. Cannot stack with other Physical Resonance or Physical Reaction effects, with Physical Resonance taking precedence.
Flame Resonance: Increases Flame ATK by 15% and Flame Resistance by 25%. Activate by equipping 2 or more Flame Weapons. This set effect works in the off-hand slot. Cannot stack with other Flame Resonance or Flame Reaction effects, with Flame Resonance taking precedence.
Whispers: On-Field: When landing any hit with Twin Stars, it deals damage to nearby targets equal to 256% of Physical ATK plus 3.6% of the player's Max HP plus 133% of the sum of all the player's Resistance Types plus 4.9% of Crit. This effect can be triggered up to time every 1.5s. The On-Field damage counts as normal attack damage. If there is 1 Frost/Volt Weapon of any kind equipped. On-field damage is multiplied by 1.3. In addition, On-Field damage is not affected by any damage boost effects except from Titan equipment's rare stats, and won't trigger additional attack effects.
Weapon Advancements
- 1★: Instantly restores 50% HP after casting Field Mastery. Increases Prism Blades damage by 10860%.
- 2★: Increase the current weapon's base ATK growth by 16%.
- 3★: Reduces Overnova cooldown to 1s. When Overnova is not active, switch to the off-hand slot: After 5s, consecutively attacks nearby enemies in a large area, dealing damage equal to 300% of ATK every second for 5s. Gains an extra 10% Physical damage Boost and 5% Final damage Boost upon casting Field Mastery.
- 4★: Increase the current weapon's base ATK growth by 32%.
- 5★: Ignores target's Physical Resistance by 15% (the total value of resistance ignored for any single element cannot exceed 50%). Gain 60% damage reduction upon casting Edge Grip, Boost Strike, Driftstar Waltz, or Prism Blades.
- 6★: Increases final damage by 25%. When Fortitude Resonance is active, using Meteor Rush or Flash Step against a target with more than 90% HP reduces their HP to exactly 90% of Max HP.
Best Matrices For Aster
Discover the Best Matrices for Aster in Tower of Fantasy from R to SSR grade.
- R Matrix 3 Piece of Provocateurs: Increase damage dealt by physical weapons by 6%.
- SR Matrix 3 Piece of Bai Ling - Increases damage dealt to grievous targets by 12/15/18%.
- SSR Matrix: You can use all 4 Lyncis matrices if you are lucky enough to get all 4 together.
Aster - 2 Piece Set: Increases Physical ATK by 26%/28%/30%/32%, boosting Final damage by 3% per target killed, up to 2 stacks, lasting for 60s. This set effect works in the off-hand slot, and only the set with the highest star rating will take effect.
Aster - 4 Piece Set: Increases all elemental damage by 21%/25%/29%/33%. Equip Twin Stars to increase Final damage by an extra 11%. Increases sahtter by 100% when Fortitude Resonance is triggered. This set effect works in the off-hand slot, and only the set with the highest star rating will take effect.
- OR Use 2 Piece of Samir: Increase damage progressively by 1% upon hitting a target. Stack up to 10/13/16/20 times. Last for 1.5s.
- Plus 2 Piece of Lyra: Use this weapon to increase all types by 13% / 17% / 21%/ 25%. The lower the hp, the higher the healing received, which can be increased by up to 100%.
Best Aster Team Build
Weapon Skill
Normal Attack
Astral Slash
While on the ground, use normal attack to launch five consecutive strikes.
- First Strike: Deals 431% of ATK+23 damage, knocking targets back.
- Second Strike: Deals 388% of ATK+20 damage, knocking targets back.
- Third Strike: Deals 561% of ATK+30 damage, knocking targets back.
- Fourth Strike: Deals damage up to 593% of ATK+31, knocking targets back.
- Fifth Strike: Deals 750% of ATK+39 damage, knocking targets back.
Cosmic Slash
While the Wanderer is airborne, use normal attack to launch 5 Consecutive attacks in the air, consuming endurance.
- First Strike: Deals damage equal to 431% of ATK plus 23 and knocks the targets back.
- Second Strike: Deals damage equal to 388% of ATK plus 20 and knocks the targets back.
- Third Strike: Deals damage equal to 561% of ATK plus 30 and knocks the targets back.
- Fourth Strike: Deals damage equal to 593% of ATK plus 31 and knocks the targets back.
- Fifth Strike: Deals damage equal to 750% of ATK plus 39 and knocks the targets back.
Pulse Pierce
While on the ground and under Photon Surge, Use normal attack to launch five consecutive strikes.
- First Strike: Deals damage equal to 393% of ATK plus 21 to the targets and knock them back.
- Second Strike: Deals damage equal to 812% of ATK plus 43 to the targets and knock them back.
- Third Strike: Deals damage equal to 873% of ATK plus 46 to the targets and knock them back.
- Fourth Strike: Deals damage equal to 1101% of ATK plus 58 to the targets and knock them back.
- Fifth Strike: Deals damage equal to 1668% of ATK plus 88 to the targets and knock them back.
Void Impact
While airborne and under Photon Surge, use a normal attack to launch five consecutive strikes, consuming Endurance.
- First Strike: Deals damage equal to 393% of ATK plus 21 to the targets and knock them back.
- Second Strike: Deals damage equal to 812% of ATK plus 43 to the targets and knock them back.
- Third Strike: Deals damage equal to 873% of ATK plus 46 to the targets and knock them back.
- Fourth Strike: Deals damage equal to 1101% of ATK plus 58 to the targets and knock them back.
- Fifth Strike: Deals damage equal to 1668% of ATK plus 88 to the targets and knock them back.
Edge Grip
Can be activated during Photon Surge, When Overnova is active, holding the skill button during any of the first five ground hits or holding the normal attack button will trigger the effect, consuming 1 Overnova stack. This effect can only trigger once per Photon Surge.
Deal damage equal to 2760% of ATK plus 145 to nearby enemies.
Boost Strike
Can be activated during Photon Surge, While Overnova is active, holding the skill button during any of the first five ground hits or while casting Edge Grip, or holding the normal attack button, will trigger the effect and consume 1 Overnova stack. This effect can only trigger once per Photon Surge.
Deal damage equal to 2267% of ATK plus 119 to nearby enemies.
Driftstar Waltz
Can be activated during Photon Surge. While Overnova is active, holding the skill button during any of the first five ground hits or while casting Boost Strike, or holding the normal attack button, will trigger effect and consume 1 Overnova stack. This effect can only trigger once per Photon Surge. Deals damage equal to 4435% of ATK plus 233 to nearby enemies.
Skyfall Verdict
Hold the normal attack button while airborne, or use normal attack while climbing, jumping backward, or using jetback to trigger Skyfall Verdict. During the fall, each hit on the target deals 832% of ATK +44 damage. Upon landing, deal damage equal to 1386% of ATK + 73 damage.
Meteor Rush
During Meteor Realm, press normal attack while airborne to trigger Meteor Rush, dealing damage equal to 1386% of ATK plus 73 to nearby targets and inflicting Starfall Shard. Restores a leap attempt upon a successful hit.
Flash Step
During Meteor Realm, press and hold normal attack while airborne to trigger Flash Step, dealing damage equal to 1386% of ATK plus 73 to nearby targets. Hitting non-Boss enemies inflicted with Starfall Shar will trigger an immediate execution (only effective in the World and not applicable to Mecha enemies). Restores a leap attempt upon a successful.
Dodge
Glint Raid
Use normal attack during the short perfect dodge window (use a directional button before dodging) to trigger a pre-dodge attack, dealing damage up to 832% of ATK plus 44 to targets ahead.
Flank Strike
Use normal attack during the short period after dodging to trigger a post-dodge attack, dealing damage up to 1238% of ATK plus 65 to targets ahead.
Rapid Deploy
Hold the Dodge button, during the perfect dodge window (use the movement button before dodging) to activate Meteor Realm (unavailable in Apex league). Continuously consumes Endurance and gains Starflow. While Meteor Realm is active, speed boost won't take effect.
During Meteor Realm, press the jump button to interrupt your current swing and instantly align your direction with the camera. While Meteor Realm is active, press the dodge button to continue swinging. At the start of swing, the environment will be scanned. If a valid anchor point is detected, the swing does not consume Endurance. If none is found, Twin Stars will create an anchor from the void, and Endurance will be consumed as usual. During Meteor Realm, touching the water surface triggers a brief skipping state. Press dodge during this time to leap upward quickly. While in Meteor Realm, move toward a wall to enter wall glide mode. While Gliding left or right, press jump to quickly leap off the surface. All Starflow will be cleared when Meteor Realm ends.
Vector Leap
Hold the jump button during Meteor Realm to enter Vector Leap, continuously consuming Starflow while active. While Vector Leap is active, speed boost won't take effect. During Vector Leap, moving the joystick while rotating the camera causes a rapid direction shift.
Skill
Field Mastery
Enters Photon Surge and gains temporary invincibility, dealing damage equal to 2458% of ATK plus 129 to nearby targets. Increases physical damage by 3% for 30 seconds and gains hyperbody. Cooldown: 21 seconds (this is not affected by other cooldown clearing, resetting, or changing effect). During Photon Surge, using Twin Stars for normal or dodge attacks grants 1 Overnova every 3 seconds, up to 3 points during each Photon Surge. Reach 3 Overnova while Field Mastery is on cooldown to gain Prism Blades. Removes all Overnova when Photon Surge ends or Twin Stars is switched to the off-hand slot, and prevents gaining or casting Prism Blades.
Prism Blade
Can be activated during Photon Surge. Deals damage equal to 7240% of ATK plus 381 to nearby enemies. While Fortitude Resoanance is active, Prism Blade forcefully taunts enemies within range for 5s. For each taunted target, grants nearby allies a 5% final damage bonus, up to 20% for 20s. (If the effect is reapplied, only the highest bonus is applied).
Discharge
Blast Whirlpool
When the weapon is fully charged or Phantasia is triggered, upon switching to this weapon from another, removes all debuffs from the player, dealing 9410% of ATK + 495 damage to nearby enemies. During the skill, gains damage immunity for 1.5s (not applicable in Apex league). Grant nearby allies damage immunity for 1.5s while Fortitude Resonance is active.
Weapon Upgrade Materials
To upgrade level you need Rockcore, Nano Coating, Booster Frame. You'll need a higher rarity of these materials when you upgrade your weapon to a higher level.
Character Awakening Traits
Discover Aster Awakening Tratis in Tower of Fantasy required points and traits effects.
- 1200 Points - Vigilant Watch: Increase final damage by 14%.
- 4000 Points - Adjudication: Increase final damage by 18%. Instantly restores 500 endurance when hitting enemies with Meteor Rush or Flash Step.
Aster Gifts
Coming Soon!
Hope this guide can help you guys to understand more about Aster and have a better build to make her become more stronger inside the game.
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