Krav, the Unredeemed
Legendary Creature - Demon | Power/Toughness: 3 / 3 (CMC 5)
Partner with Regna, the Redeemer (When this creature enters the battlefield, target player may put Regna into their hand from their library, then shuffle.)
, Sacrifice X creatures: Target player draws X cards and gains X life. Put X +1/+1 counters on Krav, the Unredeemed.