Brothers Grile, Brazen Robbers

Flying, Flash, Deathtouch
Other Fairies you control Gain +1/+0 and,
"Whenever this creature deals combat
damage to a player, that player mills a card".
At the beginning of your end step, Exile target
spell from a graveyard. you may cast that spell,
and spend mana as though it were mana of
any color to cast it. That spell gains Flash.