Ashertmarn, Heart of the Revel

At the beginning of your upkeep, destroy another target artifact or enchantment.
If you can't, sacrifice Ashertmarn and it does
4 damage to you.
Ashertmarn, the Heart of the Revel, is the final
of the three great Mindless Unmade. His gift to
men is not prophecy or battle focus, but a lust for
indulgence.