Arni Slays the Troll [Kaldheim]

Set: Kaldheim Type: Enchantment — Saga Rarity: Uncommon Cost: {R}{G} (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)I — Target creature you control fights up to one target creature you don't control.II — Add {R}. Put two +1/+1 counters on up to one target creature you control.III — You gain life equal to the greatest power among creatures you control.