Death's Oasis (Extended Art) [Ikoria: Lair of Behemoths] Scars of Mirrodin Relic Vial has "Whenever a

Relic Vial has "Whenever a creature you control dies

Reinforcements

When you feel a rumble in the ground

Eldrazi Type: Creature — Elf Archer Ally Rarity: Uncommon Cost: {2}{G} Whenever Tajuru Archer or another Ally enters the battlefield under your control

Whenever Narset

Death's Oasis (Extended Art) [Ikoria: Lair of Behemoths] Scars of Mirrodin Relic Vial has "Whenever aSet: Ikoria: Lair of Behemoths Type: Enchantment Rarity: Rare Cost: {W}{B}{G} Whenever a nontoken creature you control dies, mill two cards. Then return a creature card with lesser mana value than the creature that died from your graveyard to your hand. {1}, Sacrifice Death's Oasis: You gain life equal to the highest mana value among creatures you control.