Echo Form

Echo Form is a rare Defect Power costing 3 Energy with Ethereal that causes the first card you play each turn to be played twice. This doubling effect is among the most powerful scaling mechanics in the game, effectively giving you an extra card play every single turn for the rest of combat. The Ethereal keyword means you must play it or lose it.

Echo Form doubles the impact of any card, but pairs especially well with Glacier for doubled Frost and Block, with Defragment for doubled Focus gain, and with Creative AI for doubled Power generation. Amplify can play Echo Form twice, stacking the effect so your first TWO cards each turn are doubled.

For the Defect, Echo Form is arguably the strongest rare Power in the card pool. Against every boss from Lagavulin Matriarch to Doormaker, doubling your first play each turn provides overwhelming advantage. The 3 Energy cost and Ethereal keyword mean you must plan your turn around playing it immediately. Use Double Energy or TURBO to afford it, and pair with Machine Learning to draw enough cards to maximize the doubled play each turn.