Taylor Swift, Prismari Star

Magecraft — Whenever you cast or copy an instant or sorcery spell, put a verse counter on Taylor Swift, then scry X, where X is the
number of verse counters on it.
Creatures you control get +1/+0 for each verse counter on Taylor Swift.
As long as Taylor Swift has ten or more verse counters on it, instant and sorcery spells you
cast have storm.