Tankbuster

Cost		3,500
Tier		3
+100 Spirit Shield Health
+8% Weapon Damage
Passive
Abilities deal bonus Spirit Damage if they deal 175 damage or more in a single hit. Targets are immune to the effects of Improved Burst for 5s after taking damage from it.
Upgrades From: Mystic Burst
Internal name:

Improved Burst is a Tier 3 Spirit Item which grants Spirit Shield Health and Weapon Damage to the purchasing hero.

It has a passive which causes additional Spirit Damage to enemies who receive a single instance of ability spirit damage above a certain threshold from the purchasing hero.

It can be purchased from the Shop for  3,500 (its Component, Mystic Burst, makes up  500 of the cost).

Notes

• Some forms of Spirit Amp applied by items count as separate damage instances and thus don't contribute to the single hit such as Escalating Exposure.
• When the target is hit with spirit damage, the damage value which is compared against the triggering threshold is the base damage value prior to any increases or decreases from damage amp, damage reduction, spirit resistance, and spirit resistance reduction.
  • Damage amp and spirit resist reduction will not help you in achieving the damage threshold to trigger the passive.
  • Damage reduction and the target's spirit resistance will not prevent the passive from triggering when it otherwise would.
• Interaction with spirit shields: The triggering of the additional damage is entirely unaffected by the target's spirit shields (or lack thereof).
• The additional damage, and the ability which triggered the additional damage, are applied to the target as separate instances of damage. The additional damage from Improved Burst is dealt after the original spell damage. This has implications for abilities or effects that rely on single instances of damage, for example:
  • Vindicta uses assassinate on an enemy Warden. The baseline Assassinate on its own is not enough damage to kill the Warden, but the increased damage (due to the additional damage from triggering Improved Burst) is enough to secure the kill. Since the additional damage from triggering Improved Burst is applied after the Assassinate, it is technically the item's damage which secures the kill, not the Assassinate. Thus, Vindicta will not receive bonus souls from Assassinate's passive.

Recommended heroes

• Lady Geist
• Bebop
• Grey Talon
• Lash
• Pocket
• Yamato

Update history

Main article: Update history

View the full update history: Tankbuster/Update history

Update	Changes
July 28, 2026	No longer procs off of items
March 6, 2026	Current Health Bonus Damage increased from 7.5% to 8%
December 16, 2025	Changed from doing % of Max Health to a % of Current Health. Damage dealt increased from 5% to 7.5%.

Items

Weapon

 800

Close Quarters • Extended Magazine • Headshot Booster • High-Velocity Rounds • Monster Rounds • Rapid Rounds • Restorative Shot

 1600

Active Reload • Fleetfoot • Intensifying Magazine • Kinetic Dash • Long Range • Melee Charge • Mystic Shot • Opening Rounds • Recharging Rush • Slowing Bullets • Spirit Shredder Bullets • Split Shot • Stalker • Swift Striker • Titanic Magazine • Weakening Headshot

 3200

Alchemical Fire • Ballistic Enchantment • Berserker • Blood Tribute • Burst Fire • Cultist Sacrifice • Escalating Resilience • Express Shot • Headhunter • Heroic Aura • Hollow Point • Hunter's Aura • Point Blank • Shadow Weave • Sharpshooter • Spirit Rend • Tesla Bullets • Toxic Bullets • Weighted Shots

 6400

Armor Piercing Rounds • Capacitor • Crippling Headshot • Crushing Fists • Frenzy • Glass Cannon • Lucky Shot • Ricochet • Silencer • Spellslinger • Spiritual Overflow

Legendary

Haunting Shot • Infinite Rounds • Runed Gauntlets

Vitality

 800

Extra Health • Extra Regen • Extra Stamina • Grit • Healing Rite • Melee Lifesteal • Rebuttal • Sprint Boots

 1600

Battle Vest • Bullet Lifesteal • Debuff Reducer • Enchanter's Emblem • Enduring Speed • Guardian Ward • Healbane • Healing Booster • Reactive Barrier • Restorative Locket • Return Fire • Spirit Lifesteal • Spirit Shielding • Trophy Collector • Weapon Shielding

 3200

Bullet Resilience • Counterspell • Dispel Magic • Fortitude • Fury Trance • Healing Nova • Lifestrike • Majestic Leap • Metal Skin • Rescue Beam • Spirit Resilience • Stamina Mastery • Veil Walker • Warp Stone

 6400

Cheat Death • Colossus • Divine Barrier • Diviner's Kevlar • Healing Tempo • Indomitable • Infuser • Inhibitor • Juggernaut • Leech • Phantom Strike • Plated Armor • Siphon Bullets • Spellbreaker • Unstoppable • Vampiric Burst • Witchmail

Legendary

Celestial Blessing • Cloak of Opportunity • Electric Slippers • Eternal Gift • Nullification Burst • Seraphim Wings • Shadow Strike

Spirit

 800

Extra Charge • Extra Spirit • Golden Goose Egg • Mystic Burst • Mystic Expansion • Mystic Regeneration • Rusted Barrel • Spirit Strike

 1600

Arcane Surge • Bullet Resist Shredder • Cold Front • Compress Cooldown • Duration Extender • Improved Spirit • Mystic Slow • Mystic Vulnerability • Quicksilver Reload • Slowing Hex • Spirit Sap • Suppressor

 3200

Decay • Disarming Hex • Greater Expansion • Knockdown • Radiant Regeneration • Rapid Recharge • Silence Wave • Spirit Snatch • Superior Cooldown • Superior Duration • Surge of Power • Tankbuster • Torment Pulse

 6400

Arctic Blast • Boundless Spirit • Cursed Relic • Echo Shard • Escalating Exposure • Ethereal Shift • Focus Lens • Lightning Scroll • Magic Carpet • Mercurial Magnum • Mystic Reverb • Refresher • Scourge • Spirit Burn • Transcendent Cooldown • Vortex Web

Legendary

Frostbite Charm • Mystic Conduit • Mystical Piano • Omnicharge Signet • Prism Blast • Shrink Ray • Unstable Concoction