Mason, Mega Nerd

-1: Create a red 1/1 Nerd creature token, then create two blue 0/1 Nerdo creature tokens with Defender.
-2: Sacrifice any number of Nerdos. Mason, Mega Nerd deals that much damage minus the number of Nerds you control to target creature.
0: Exile Mason, Mega Nerd and two other Nerds you control, then return Mason to the battlefield under your control after the next end step.