Bastion of Remembrance is a uncommon Enchantment card from Ikoria: Lair of Behemoths (IKO), collector number 73. Current market price: $0.31 (foil $1.08), TCGplayer market prices via Scryfall.
When this enchantment enters, create a 1/1 white Human Soldier creature token. Whenever a creature you control dies, each opponent loses 1 life and you gain 1 life.