Hidetsugu, Devouring Chaos (Neon Ink Green) [Kamigawa: Neon Dynasty]

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I, II — Create a Treasure token.
III — Search your library for a card named Halvar, God of Battle or an Equipment card, reveal it, put it into your hand, then shuffle.