Take a Mankey and name it BrooklynRage (shorten it however it needs to be to fit). Brooklyn is ALWAYS IN A RAGE! Once it hits the battlefield, it can't switch out until its opponent is destroyed or Brooklyn itself is destroyed (the Mankey not the borough, unless you have a spare nuclear weapon you want to use). Brooklyn isn't the best at complex strategies and just likes to use a bunch of flashy hard hitting moves, so it can only use damaging attacks.
Good luck and have fun!