Eryk, Prodigal Student

Whenever you Evoke a spell, copy it unless an opponent sacrifices a permanent.
Invoke (When you cast this spell, you may exile
an instant or sorcery card from your hand.)
{t}: Evoke (You may cast the exiled card by paying {x}, where {x} is the exiled cards mana
value minus this cards mana value.)
—
Eryk's ruthless onslaught forced his adversaries to
make impossible choices.