Batnils

Vigilance, mentor, flash, deathtouch.
When Batnils enters the battlefield, create 2 0/5 Batsignal tokens and all your creatures gain
hexproof.
{t}{4}Preparation: attack and create 4 2/2 Robin
tokens.
{t}{6}Goddamn Batman: exile target permanents.
{t}{4}Squirrel Knight: create 4 1/0 Batsquirrel
tokens with deathtouch.