Accelerant

Accelerant is a 2-cost rare Power card for the Silent that gains 1 energy at the start of each turn for the rest of the fight. The permanent energy increase fundamentally expands what you can do each turn, enabling more cards played and more powerful combos. Going from 3 to 4 energy per turn is transformative.

Accelerant powers up energy-hungry cards like Wraith Form, Bullet Time, and Skewer, which all scale with available energy. Leg Sweep and other 2-cost cards become more affordable alongside cheaper plays. Malaise benefits enormously from extra energy for higher X values. Adrenaline provides immediate energy for the turn you play Accelerant, offsetting the initial investment.

Silent players should pick Accelerant when they have expensive key cards that need more energy to function optimally. It excels in every boss fight by enabling stronger turns throughout the fight. The 2-cost investment means you sacrifice a turn of tempo, so play it early in fights like Knowledge Demon and Doormaker where the long-term payoff is worth it.