The Heaven Piercer Relic Set arrived in Universal Tower Defense Z with Update 4.0, and it rewards units that fight surrounded by allies. Equip all three pieces on a damage dealer and you get a stacked package of extra damage, higher buff potency, and tag-based set bonuses.
Quick answer: Clear stages in Beast Desert Story and Virtual Realm modes to farm the Accessory, Top, and Bottom pieces, then equip all three on a DPS unit.
Where the Heaven Piercer pieces drop
Every piece of the set comes from the Beast Desert content. You farm the drops by completing stages in the Beast Desert Story mode and Beast Desert Virtual Realm mode. Each clear gives you a chance at the relic tied to that stage, so you may need several runs before all three pieces appear.
Because these are Story-based stages, they are approachable at any progression level. You do not need a maxed roster to start farming, though higher-difficulty clears improve your odds of pulling a stronger rarity.
What each Heaven Piercer piece does
The set has three slots. The Accessory works on its own, while the Top and Bottom only trigger their effect when both are equipped together on the same unit.
| Piece | Effect |
|---|---|
| Accessory | +35% damage while the unit is surrounded by five or more allied units |
| Top | +25% buff potency when the unit buffs allies or receives buffs (needs Bottom equipped) |
| Bottom | +25% buff potency when the unit buffs allies or receives buffs (needs Top equipped) |
The Accessory suits DPS units that already sit near support towers, since packing five allies around them keeps the 35% bonus active. The Top and Bottom pair rewards units that share or receive buffs during a fight.
Full set bonus with all three pieces
Wearing all three pieces at once unlocks an extra tag-based set bonus on top of the individual effects. The bonus depends on the unit’s tag.
| Tag | Set bonus |
|---|---|
| King | +10% Damage, +20% DoT Damage, +20% Buff Potency |
| Villain | +10% Damage, +15% Critical Rate |
Best units for the Heaven Piercer Set
The set delivers the most value on DPS-focused units that stay in the middle of a formation. Moonless Sky and Virtual Idol (Super Star) are strong fits, since both benefit from the damage spike and the buff potency boost.
DPS-support hybrids also work well. A unit that can buff itself triggers the Top and Bottom potency bonus without depending on separate support towers, which makes the set flexible across different team layouts.
Confirming the set is active
Once you have all three pieces, equip them to a single unit through its relic slots. The individual bonuses apply the moment the pieces are equipped, and the full set bonus reads out based on the unit’s King or Villain tag. To keep the Accessory’s 35% damage running, place the unit where at least five allied units sit within reach.
Universal Tower Defense Z is free to play, so you can grind the Beast Desert stages for these relics without spending anything. Keep repeating runs until all three pieces drop, then slot them onto your strongest damage dealer to make the ally-based bonuses count.
