Malenia, Goddess of Rot

Haste, menace, indestructible
When Malenia, Goddess of Rot enters the battlefield, each opponent creates a scarlet
rot token.
At the beginning of your upkeep, pay 5 life. If
you don't, sacrifice Malenia, Goddess of Rot.
If a player would be dealt damage by a scarlet rot token, double the amount of
damage done.