Diamond Diadem

Diamond Diadem

Ancient
Whenever you play 2 or fewer cards in a turn, take half damage from enemies.

The Diadem counts cards you play each turn and shows the count on its icon. When your turn ends with 2 or fewer plays, including zero, it applies the Diamond Diadem power: enemies deal 50% less damage during the enemy turn that follows. The counter resets every turn, so each turn is judged on its own. It comes from Nonupeipe.

Rarity
Ancient
Character
All characters

When to take Diamond Diadem

Take it for decks built around one or two big plays a turn, X-cost bombs or 3- and 4-cost Attacks. Poor fit for a Shiv or Claw deck playing five cards a turn.

Cards that synergize with Diamond Diadem

Bludgeon
Attack
3
Deal 32 damage.
Bludgeon, Bury and Seven Stars do a turn's work in one card.Deal 32 damage.
Bury
Attack
4
Deal 52 damage.
Bludgeon, Bury and Seven Stars do a turn's work in one card.Deal 52 damage.
Seven Stars
Attack
2
7
Deal 7 damage to ALL enemies 7 times.
Bludgeon, Bury and Seven Stars do a turn's work in one card.Deal 7 damage to ALL enemies 7 times.

Relics that synergize with Diamond Diadem

Pocketwatch
Pocketwatch draws 3 extra after a 3-card turn, so the two share a plan.Whenever you play 3 or fewer cards during your turn, draw 3 additional cards at the start of your next turn.
Cloak Clasp
Cloak Clasp turns the unplayed hand into Block.At the end of your turn, gain 1 Block for each card in your Hand.
Intimidating Helmet
Intimidating Helmet gives 4 Block for each expensive card.Whenever you play a card that costs or more, gain 4 Block.
Chandelier
Chandelier funds one giant turn-3 play.At the start of your 3rd turn, gain .

Changes by version

  1. 30 Jul 2026TextPlaytest
    Updated Diamond Diadem relic's wording to be clearer about how long its effect lasts
  2. 16 Jul 2026ReworkPlaytest
    "Whenever you play 2 or fewer cards in a turn, take half damage from enemies." to "Start combat with 20 Block. Block is not removed at the start of your next turn."
  3. Fixed Nonupeipe's Diamond Diadem relic resetting its count after Hellraiser plays cards at the start of the turn
All 5 patch notes2 older
  1. Fixed Nonupeipe's Diamond Diadem relic resetting its count after Hellraiser power plays cards at the start of the turn
  2. 4 Dec 2025ReworkNonupeipeInternal playtest
    Reworked and renamed Nonupeipe's Carnivorous Terrarium relic to Diamond Diadem

Internal playtest notes are from before the Early Access release. Names and numbers in them can differ from the game today.

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