Mordred, Knight of Treachery

{x}{r/w}: Mordred, Knight of Treachery gets +X/+0 and gains first strike until end of turn.
Threshold - As long as seven or more cards are in your graveyard, Mordred, Knight of Treachery gets +1/+1, and has "{2}{b}, {t}: Destroy target white creature."
"I loved you. All I ever wanted was for you recognize me and call me your son! Why did you reject me, Father!?"