Pulse of the Forgoten

Wheneaver you plainswalk, set a scheme into
motion, complete a quest, assemble a contraption, activate an ability on a conspiracy, or a conspiracy
you control triggers, you get a forgotten counter.
{0}, pay 1 forgotten counter : you may destroy
target contraption, conspiracy, plaine or quest, or counter target phenomenon, activate this ability
only if you have 3 or more forgotten counters.