Streamline

Streamline is a common Defect attack that starts at 2 Energy, deals 15 damage, and permanently reduces its own cost by 1 each time it is played. After a single play it becomes a 1-cost card, and after two plays it costs 0, making it increasingly efficient as the fight progresses. The high base damage makes it relevant even at full price.

Streamline becomes devastating with All for One once it reaches 0 cost, as it can be recursively pulled from the discard pile alongside other free cards. Hologram can retrieve Streamline from discard to play it again and reduce its cost further. Feral returns the first 0-cost Attack played each turn to hand, creating an infinite loop with a fully reduced Streamline.

For the Defect, Streamline is a solid damage option that improves in longer fights. Against bosses like Kaiser Crab and Test Subject #C10 where fights drag on, Streamline quickly becomes free and deadly. In All for One decks, it is a priority pick because it naturally trends toward 0 cost. Pair it with Reprogram for even higher damage output as the fight progresses.