Vextus, the bone blade

Haste, trample
If Vextus, the bone blade, and Extun, the bloody mace, are on the battlefield at the same time they both gain +1/+1 and double strike
{b}{b}{b} exile Vextus, the bone blade, find mary, the bloody soul, if she is not in your hand, reshuffle the deck and then place her on the battlefield