Yone, The Unforgotten

Double strike, haste

Way If the Hunter - Whenever Yone attacks, until end of turn, whenever a creature dealt damage by Yone dies, its controller loses x life where x is half the creature's power and toughness rounded up.

Soul Unbound - {2}{b}{b}{b}{r}{r}{r}: Untap all creatures you control. If it's a main phase, there is an additional combat phase followed by an additional main phase. Transform Yone. Activate only as a sorcery.