Version

Drain Power

NecrobinderAttackCommon
Deal 10 damage.
Upgrade 2 random cards in your Discard Pile.

It deals 10 damage (12 upgraded), then upgrades 2 random cards from your discard pile (3 upgraded) for the rest of the combat. The code only picks cards that can still be upgraded, so already-upgraded cards and cards with no upgrade are skipped. The deck itself is unchanged after the fight. On a turn with an empty discard pile it upgrades nothing.

Character
Type
Attack
Rarity
Common
Cost
1 Energy
Target
One enemy

When to take Drain Power

A better Act 1 Strike, 10 for 1, that grows stronger the longer the fight goes and the more unupgraded cards you hold. Its value fades once the deck is mostly upgraded.

Cards that synergize with Drain Power

Dredge
Skill
1
Put 3 cards from your Discard Pile into your Hand.
Exhaust.
Dredge pulls the freshly upgraded cards straight back into hand.Put 3 cards from your Discard Pile into your Hand.
Exhaust.
Bury
Attack
4
Deal 52 damage.
Bury gains 11 damage from an upgrade and Reap gains 6.Deal 52 damage.
Reap
Attack
3
Retain.
Deal 27 damage.
Bury gains 11 damage from an upgrade and Reap gains 6.Retain.
Deal 27 damage.
Delay
Skill
2
Gain 11 Block.
Next turn,
gain .
Delay upgraded refunds 2 Energy instead of 1.Gain 11 Block.
Next turn,
gain .
Undeath
Skill
0
Gain 7 Block.
Add a copy of this card into your Discard Pile.
Undeath fills the discard pile with copies to hit.Gain 7 Block.
Add a copy of this card into your Discard Pile.

Relics that synergize with Drain Power

Miniature Cannon
Miniature Cannon adds 3 damage to every Attack it upgrades.Upgraded Attacks deal 3 additional damage.

Changes by version

  1. 8 Jan 2026DamageReaveInternal playtest
    Changed Drain Power and Reave cards: swapped damage values
  2. 7 Aug 2025Cards1(2)2(3)Internal playtest
    Cards increased from 1 to 2 (upgraded 2 to 3)
  3. 5 Dec 2024Upgraded damage1211Internal playtest
    Upgraded damage decreased from 12 to 11
All 5 patch notes2 older
  1. 21 Nov 2024Damage6(9)9(12)Internal playtest
    Damage increased from 6 to 9 (upgraded 9 to 12)
  2. 1 Nov 2024ReworkInternal playtest
    Reworked the card

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

Purchase today
If you haven't bought Slay The Spire 2 yet, it's time. Support the devs, they made an amazing game.Get it on Steam