Like so many other recurring mechanics without an official name, this has been named after the first card where it appeared, Act on Impulse
Mega Tyranitar Tyranitar is a Rock/Dark-type and pseudo-legendary Pokmon resembling a large bipedal dinosaur
Two mana to tutor any equipment, a creature to wear it and the ability to cheat it in, avoiding most counterspells
Even compared to the infamous pandemic years, Pokmon fans can totally forget about finding cards in stores these days
Additionally , Mega Rayquaza ex serves as the flagship card of the expansion
While only affecting a single creature type restricts Cavern, typal decks can leverage this to ensure their threats get through countermagic, be they efficient merfolk, monstrous dinosaurs, or sneaky goblins