Goober, Resident Scientist

First strike, menace
Whenever you cast your first instant or sorcery spell each turn, you may cast a spell with lesser mana value that shares a card
type with it from your hand without paying
its mana cost. If you don't, create Lil' Bro Booger, a legendary 2/1 red Monkey Pirate creature token. It gains haste until end
of turn.