Mephistopheles, Chaos Arcanist

Level up {u/r}
---{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}
Level 1-3: Instants and sorcery spells you
cast cost {2} less. (3/3)
{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}
Level 4-6: Whenever you cast an instant or
sorcery spell, deal 2 damage to each opponent.(4/4)
{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}
Level 7+: Hexproof. Instant and sorcery spells
you cast gain cascade. (5/5)