Carian Queen Rennala

At the beginning of each upkeep except your own, if Renalla, of the Full Moon doesn’t have a shield counter on her, put a shield counter on her.

Instants and sorceries you control cost {u/b} less to cast.
Whenever you cast an instant or sorcery spell, create a 0/1 black Sweetling creature token with
“Sacrifice three tokens with the same name: Copy target instant or sorcery spell you control. You may choose new targets for the copy.”

Creatures you control with shield counters have
-2/-0, def