Leonardo's Technique

Sneak {1}{W} (You may cast this spell for {1}{W} if you also return an unblocked attacker you control to hand during the declare blockers step.)
Return one or two target creature cards each with mana value 3 or less from your graveyard to the battlefield.

Infiltración {1W}.
Regresa de tu cementerio al campo de batalla una o dos cartas de criatura objetivo, cada una con valor de maná de 3 o menos.