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Energy is the resource used to play cards. The energy cost of a card is at the top left and typically ranges from 0-3, though there are some exceptions. The Ironclad, the Silent, the Defect, and the Watcher all start the game with 3 base energy, which can be increased with relics. There are also cards that generate temporary energy.

Some cards can have X Energy cost. These cards consume all of your remaining Energy upon use, and their effect varies with how much Energy was consumed.

Cards and relics may use a symbol to denote energy, and will appear differently on different colors or characters. However, each symbol is interchangeable; the symbols are purely cosmetic.

RedEnergy Ironclad[]

Energy Generation

Cost Reduction

X Cost

  • Whirlwind: Deals 5(8) damage to ALL enemies X times.

Other

GreenEnergy Silent[]

Energy Generation

Cost Reduction

  • Bullet Time: All cards in your hand cost 0 this turn, but you can no longer draw cards this turn.
  • Eviscerate: Initially costs 3, decreases by 1 for each card discarded this turn. Deals 7(9) damage 3 times.
  • Setup: Place a card from your hand on top of your draw pile. It costs 0 until played.

X Cost

Other

Defect[]

Energy Generation

Cost Reduction

X Cost

Other

  • All for One: Deal 10(14) damage. Put all cards in your discard pile that cost 0 into your hand.
  • Scrape: Deals 7(10) damage, draws 4(5) cards. Discards all cards drawn this way that do not cost 0.
  • White Noise: Adds a random Power card to your hand. It costs 0 this turn.

PurpleEnergy Watcher[]

Energy Generation

Cost Reduction

X Cost

Other

Colorless Cards[]

Cost Reduction

  • Enlightenment: Reduce the cost of all cards in your hand to 1 this turn (this combat).
  • Forethought: Place a card (any number of cards) from your hand to the bottom of your draw pile. It costs (they cost) 0 until played.
  • Madness: Costs 1(0). A random card in your hand costs 0 for the rest of combat. Exhaust.

X Cost

  • Transmutation: Add X random (upgraded) colorless cards to your hand. They cost 0 this turn. Exhaust.

Other

Status[]

Relics[]

Energy Generation

  • Uncommon
    • GremlinHorn Gremlin Horn: Whenever an enemy dies, gain ColorlessEnergy and draw 1 card.
    • Sundial Sundial: Every 3 times you shuffle your deck, gain ColorlessEnergyColorlessEnergy.
  • Boss
    • BustedCrown Busted Crown: Gain ColorlessEnergy at the start of every turn. Card rewards have 2 less options.
    • CoffeeDripper Coffee Dripper: Gain ColorlessEnergy at the start of every turn. You can no longer rest at Rest Sites.
    • CursedKey Cursed Key: Gain ColorlessEnergy at the start of every turn. Opening non-boss chests now gives you a .
    • Ectoplasm Ectoplasm: Gain ColorlessEnergy at the start of every turn. You can no longer gain Gold.
    • FusionHammer Fusion Hammer: Gain ColorlessEnergy at the start of every turn. You can no longer Smith at Rest Sites.
    • HoveringKite Hovering Kite (Silent only): The first time you discard a card each turn, gain GreenEnergy.
    • MarkofPain Mark of Pain (Ironclad only): Gain RedEnergy at the start of every turn. Start each combat with 2 Wound in your draw pile.
    • PhilosophersStone Philosopher's Stone: Gain ColorlessEnergy at the start of every turn. Enemies start each combat with 1 Icon Strength Strength.
    • RunicDome Runic Dome: Gain ColorlessEnergy at the start of every turn. You can no longer see enemy intents.
    • SlaversCollar Slaver's Collar: During Boss and Elite combats, gain ColorlessEnergy at the start of your turn.
    • Sozu Sozu: Gain ColorlessEnergy at the start of every turn. You can no longer obtain potions.
    • VelvetChoker Velvet Choker: Gain ColorlessEnergy at the start of every turn. You can no longer play more than 6 cards per turn.

Cost Reduction

  • Uncommon
    • MummifiedHand Mummified Hand: Whenever you play a Power card, a random card in your hand costs 0 for the turn.

X Cost

  • Shop
    • ChemicalX Chemical X: The effects of your X-cost cards are increased by 2.

Other

  • Rare
    • IceCream Ice Cream: You no longer lose unspent energy at the start of each turn.
  • Boss
    • SneckoEye Snecko Eye: Draw 2 additional cards each turn. Start each combat Icon Confused Confused, randomizes card costs from 0 to 3 when drawn.
  • Event
    • Enchiridion Enchiridion: Add a random Power to your hand at the start of each combat. It costs 0 for the turn.
    • Necronomicon Necronomicon: The first card you play each turn that costs 2 or more is played twice.

Potions[]

Energy Generation

Other

  • SneckoOil Snecko Oil: Draw 5 cards. Randomize the costs of all cards in your hand.

Blights[]

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