Tigrex

{w}{w}{w}{t}; Select three creatures your opponent controls. Those creatures become tapped until the end of your turn.
{w}{w}{w}{w}; Tigrex gains Flying until the beginning of your next turn. Tigrex cannot attack while it has Flying.
{w}{w}{r}{r}; Tigrex gains +2/+2 and has First Strike and Trample until the end of your turn.
It has powerful lungs which gives it the ability to produce extremely loud, concussive roars which can physically damage nearby objects.