Arkin, Peppy Instructor

Magecraft —Whenever you cast or copy an
instant or sorcery spell, put a verse counter on
Arkin.
Whenever Arkin Deals combat damage to a player
you may remove all verse counters from it. If you
do the next spell you cast this turn has cascade for
each counter removed this way.
Instructor (You can have a Lesson as a second commander.)