Joseph Joestar

Partner with Caesar Zeppeli
Prowess, Haste
Whenever you cast a noncreature spell, add {r}.
Whenever you cast your 5th spell in a turn, the next spell you cast has Storm.
Whenever you cast your 10th spell in a turn, Joseph deals damage equal to his power to any target. The next spell you cast has Storm.
Whenever you cast your 15th spell in a turn, copy each instant and sorcery in your graveyard, cast each with Storm.
Whenever a commander you own other than Joseph dies, transform Joseph.