Hysterical Strength is key card in Vampires! Versus control decks save it to push surprise lethal when they go setup drugs or missa use ichor feast and panic raiders to keep up whit them in cards always trade to get more vampires from souls. Versus other aggro midrange decks use Hysterical Strength as removal to make swing tempo turns protect your pups and biters. Hysterical Strength also gives tool to remove Master of shadows from game big problem for mono red decks this play happens very often versus purple keep moving away from master w8 for them to drop more big purple bombs burn to 7 gems use hysterical strength on Master of shadows then play gigantomachina and always dab. Versus decks that have limitied removal use hysterical strength to cheat Enyo empower.