Tanx is one of the Ancients in Slay the Spire 2. Tanx appears at the start of Act 3 and presents three relics chosen at random from a weapon-themed pool of ten. One relic is conditional on your Attacks being enchantable with Instinct.
The quick read: Act 3 placement, Khimera King, and a relic choice that rewards players who know which picks scale their deck. Below is every relic in each pool with the real offer rates.
Which act and what to expect
| Ancient | Tanx (Khimera King) |
| Appears in | Act 3 |
| Mechanic | One or more relic choices from separated pools |
The relic pools
Weapon pool (3 shown of the pool)
per-relic offer chance
| Relic | Effect | Offer rate |
|---|---|---|
| Claws | Transform up to 6 cards into Maul. | 30% / 33.3% |
| Crossbow | Each turn, add a random Attack to hand; free to play this turn. | 30% / 33.3% |
| Iron Club | Every 4 cards played, draw 1. | 30% / 33.3% |
| Meat Cleaver | Cook at Rest Sites. | 30% / 33.3% |
| Sai | Gain 7 Block at the start of each turn. | 30% / 33.3% |
| Spiked Gauntlets | Gain Colorless Energy each turn; Powers cost 1 more. | 30% / 33.3% |
| Tanx’s Whistle | Add a Whistle card to your deck. | 30% / 33.3% |
| Throwing Axe | First card each combat plays an extra time. | 30% / 33.3% |
| War Hammer | On Elite kill, upgrade 4 random cards. | 30% / 33.3% |
| Tri-Boomerang | Cond: 3+ Instinct-enchantable Attacks. Enchant 3 Attacks with Instinct. | only if eligible |
Which picks matter
Without the conditional relic the pool is nine relics at about 33.3% each; with Tri-Boomerang eligible it is ten at 30%. Sai (free Block every turn) and Throwing Axe (first card doubled) are the reliable picks; Crossbow and War Hammer scale with attack-heavy decks.
The mistake players make
Picking for the moment instead of the run. The strongest Ancient pick is usually the one that thins, upgrades, or fuels your deck for the whole act, not the relic that wins the next fight. Read the offer rates above — a 25% pool relic is rarer than a 33.3% one, so weight your choice toward what you will actually be offered.
A quick checklist
- Know which act Tanx appears in before you plan around it.
- Favour deck-thinning and energy relics over one-fight payoffs.
- Watch the conditional relics — they only appear if your deck qualifies.
- Use the offer rates to judge how often a pick is even on the table.
For the other Ancients, see the Ancients overview. For what the relics do in combat, see the relic database. For the characters these relics fuel, see all five characters.