Alastor, Radio Demon

Haste, First strike

{b}{b}: Create a 1/1 black imp creature token
Sacrifice an imp: Deal 3 damage to any target

Whenever an opponent attacks with three or more creatures Alastor, Radio Demon gets +10/+10, indestructible, double strike and blocks all creatures, ignoring "this creature can't be blocked"

"Dear if I wanted to hurt anybody, I would've done so already"- Alastor