Solidarity of Heroes

A multiplier, not an adder, and that single distinction dictates the kind of board it wants. Most green counter interaction works by accumulation: one counter here, a proliferate nudging each pile up by one there. Doubling is exponential, and exponential math only pays when the base is already large, so this rewards decks built around outlandish single-creature counter stacks (Hardened Scales engines, undying recursion, anything that has already turned one creature into a monster). The strive cost polices the doubling from becoming a free board-wide explosion: each extra target adds , so spreading the effect across the team raises the price as fast as it raises the payoff, and you usually settle on one creature and cast it cheap. Timing matters more than the rate suggests. At instant speed it is both a combat trick that turns a blocked attacker lethal and a response to removal that inflates a creature past the burn or the toughness math before the spell resolves. It is a payoff dressed as a pump spell: inert in a deck that never assembles counters, devastating in one that has already done the assembling and only needs to convert.