Reaper, Death's Calling

Lifelink

Wraith Form — {b}: Until end of turn, Reaper gains Indestructible and Haste but cannot attack

Death Blossom — {b}{b}{b},{t}: Reaper deals one damage to all creatures your opponents control

Shadow Step — {b},{t}: Exile Reaper, then return
him to the battlefield at the beginning of the next
end step