Grand Muse of Sadness

When Grand Muse of Sadness enters the battlefield, create a legendary enchantment name Sadness with indestructible and "Creatures you
don't control get -1/-1. Whenever a creature attacks you, its controller loses 1 life."
Whenever a creature you don't control dies, you gain life equal to its power.
There is beauty hidden even in the saddest thing.