Bill Cipher, Chaos God

When Bill Cipher, Chaos God enters the battlefield, create 3 2/2 Eye-Bat creature tokens
with Deathtouch and Flying.
Whenever Bill Cipher attacks, he gets your
choice of Flying, Trample, or
Deathtouch until end of turn.
{4}{b/g}{r/w}{u/b}: Start Weirdmageddon. As long as Weirdmageddon is active, you cannot activate it
again and Demons you control get +7/+7.