Crumble Guides

Cookie Run: Crumble — Tea Knight Cookie

intermediateBy Hana Cho · Updated:

Tea Knight Cookie is the first Cookie in Crumble you cannot pull. He is an SSR Light Tank added in the August 27, 2026 update, and he is sold only in the Guild Medal Exchange Store — no banner carries him. His stated role is granting allies a Boss DMG buff, which the notice singles out for Guild Conquest.

Every other Cookie in the game is, in principle, reachable by a solo player with enough Crystals. Tea Knight is not. Obtaining him requires:

  1. Being in a guild at all;
  2. That guild participating in Guild Conquest, since medals come from taking part;
  3. Enough weeks of participation to afford the exchange.

That is a structural change, not a power-level one. A collection-completionist account without a guild is now permanently incomplete, and the cost is measured in weeks of attendance rather than in currency you can buy.

What his buff is actually for

A Boss DMG buff does nothing in content made of many small enemies, and a great deal in content made of one large one. Guild Conquest is scored on cumulative damage against a single raid boss, which is the exact shape where a party-wide boss-damage multiplier compounds across every member’s attempt.

So the honest framing is: he is not a Tank upgrade, he is a Guild Conquest component. If your frontline already survives, replacing it with Tea Knight outside boss content is likely a downgrade.

What has not been published

The buff percentage, its duration, whether it stacks with other boss-damage effects, his base stats, and the medal price. None of those appear in Devsisters’ press release or the English notice. This page will carry them when there is something to cite; a number without a source is not a number.

Before you spend medals

  • Confirm your guild actually runs Guild Conquest weekly. Medals accumulate from participation, so an inactive guild makes the store unreachable in practice.
  • Spend on what the gacha cannot give you first. That is the whole argument for Tea Knight over any other exchange item.
  • Test him inside the mode, against the same boss, with the rest of your team unchanged.

Sources

FAQ

How do you get Tea Knight Cookie?

Only through the Guild Medal Exchange Store, which opens through guild activity. He is not on any banner, so an account without a guild cannot obtain him at all. He was added in the August 27, 2026 update.

What does Tea Knight Cookie do?

He is an SSR Light Tank who grants allies a Boss DMG buff, which the August 27 notice calls out specifically for Guild Conquest. That makes him a specialist for boss content rather than a general-purpose frontline upgrade.

Is Tea Knight worth the medals?

If you run Guild Conquest, he is the only Cookie whose stated purpose is that mode, and medals have no competing use that the gacha cannot also provide. If you do not run guild content, his buff has nothing to attach to.