Gladis, Corpse Ritualist

At the beginning of your upkeep, you lose 3 life
and mill 2.
Whenever you cast an instant or sorcery spell,
you may pay an additional {1}{b}{g}{u}, if you do,
that spell gains Gravestorm. (When you cast this
spell, copy it for each permanent put into a graveyard
this turn. You may choose new targets for the copies.)
It consumes thousands of souls to ensure it power is
forever unmatched