Trial of the Rising Moon

Whenever you sacrifice one or more creatures, create a colorless artifact token named Moon Relic with "Whenever a creature you control dies, you gain 1 life."
At the beginning of your upkeep if you control five or more Moon Relics, sacrifice Trial of the Rising Moon and create a colorless legendary artifact token named Alter of the Moon God with "Whenever a creature you control dies, target player loses 5 life."