Strategic Mastermind — Whenever one or more legendary creatures you control attack, each nonlegendary attacking creature you control gains +1/+0 until end of turn.

{B}{B}{R}{R}{2},{t}: Sacrifice another legendary creature you control and exile Griffith, Defiled Prodigy with two morph counters on him. Whenever a legendary creature you control attacks, remove a morph counter from Griffith, if then are there no more morph counters on him, bring him back transformed.

Partner

Flying, Menace, Deathtouch

Dark Powers — Whenever Femto, 5th Apostle enters the battlefield or attacks, creatures your opponents control get -1/-1 for each Humans and Demons you control. You lose life equal to the number of Humans and Demons you control.