Derp, the Underestimated

Flying, vigilance, haste, trample, hexproof.
When Derp enters the battlefield, destroy
all opponent's permanents, and say "You
underestimated the Derp!"
Derp's power and toughness are infinite.
If opponents object to this card, you win
the game.
{t}: Target player loses the game.
"Oh, come on, he can't be THAT strong!" -Nicol
Bolas, last words