Flex Potion

Flex Potion provides a temporary Strength boost that lasts only for the current turn, after which the bonus is lost. This potion is purely an offensive burst tool designed to spike your damage on a single critical turn rather than provide sustained scaling.

Flex Potion is best used on kill turns against bosses like The Insatiable or Vantom, where you need to push lethal damage in one turn. It is also useful for finishing off Kaiser Crab before it can regenerate or shield, turning a close fight into a decisive victory.

Ironclad maximizes Flex Potion with Fiend Fire, which hits once per card discarded and benefits from the temporary Strength on every hit. Whirlwind and Immolate also scale well with the burst Strength. Silent can pair it with Blade Dance for multiple boosted shiv strikes. The Regent can combine it with Falling Star for a devastating single turn. Sacred Bark doubles the temporary Strength, and Toy Ornithopter adds healing. Burning Blood provides Ironclad with end-of-combat recovery to stay healthy.