Billy Unmasked

When Billy the Unmasked enters the battlefield, destroy all negative cards.
All creatures gain +5/+5 until the end of turn.
Billy the Unmasked gains +1/+1 for all meme references used prior to entering the battlefield.

"WACK!, Alexa.... Play Despacito, OH BOY!
Garlic Bread Till We're Dead! You can't prove that.
No, You. iEEEE, *Squints*, Oh I'm sorry,
I thought this was America"
-SSgt Daniel "Billy" Robles