Mozaki, Master Duelist

Whenever you cast an Instant, Sorcery, or Enchantment, place a Spell Damage counter
onto Mozaki, Master Duelist.
Whenever you cast an Instant or Sorcery that
deals damage, add an additional X damage, where
X is the number of Spell Damage counters on
Mozaki, Master Duelist.
Treats her students like her peers, which means
defeating them in one-sided duels all day long.