Backstab deals s single burst of damage to a single enemy. It does not cost Energy, essentially giving you a single-use free attack.
With it being Innate, it is guaranteed that you will draw on the first turn, and is included on your draw count. This could be useful on lower floor, as Backstab has a respectable damage against enemy with lower health, but it could cripple you on higher floor since it takes a spot for a potentially more powerful card. Unless you have a appropriate set of Relics, it is not advised to take more than one copy of this card.
- Bag of Marbles: Amplifies Backstab moderate damage up to a more respectable amount, allowing you to one-shot a low-health enemy.
- Akabeko: Similar to Bag of Marbles, [[Akabeko] increases Backstab damage to a respectable amount. While Backstab hits only once, it is a guaranteed first turn draw due to its Innate nature, giving you a guaranteed burst of damage on the first turn.
- Bag of Preparation, Ring of the Snake, and Ring of the Serpent: The additional card draw lessens the drawback from Innate cards taking a space on your first draw.
- Gambling Chip and Gambler's Brew: Allows the player to discard and draw a new card in place of Backstab in case that it is not beneficial.
- Dead Branch: With Backstab having 0 cost, Dead Branch turns it into free damage and a card generation, lessens the drawback from its Innate nature by giving you a chance to get a more beneficial card for free.
- Can help you take down minions of Gremlin Leader and Reptomancer in order to steer them to waste a turn summoning more minions.
- Shuriken and Kunai: An strange strategy with these relics comes from the fact that Backstab is free attack guaranteed to be drawn in the first turn, and taking 3 copies of them while having either of those relics gives you guaranteed Strength and/or Dexterity on the first turn. While those bonus can help you scale the fight, having a psuedo- Ninja Scroll that takes up 3 cards of your initial draw makes it more risky on a higher floor with more aggressive and punishing enemies.
- Art of War: Playing attacks disables Art of War's effect.
- Weekly Update 10: Quality of Life
- Backstab buffed: Cost lowered to 0. Damage decreased to 11.