With each rare slot having a 1-in-7 chance of being a mythic rare, that means roughly 5-6 mythic rares per box from the normal rare slots
Cast it when opponents have loaded hands but limited mana, maximizing the cards drawn before upkeep payments become unsustainable
Cant be too mad about the power creep here
If this spell was cast from your hand, create a 0/1 black Wizard creature token with "Whenever you cast a noncreature spell, this token deals 1 damage to each opponent." Rebound (If you cast this spell from your hand, exile it as it resolves
Though undoubtedly strong, this card is probably a bit too slow to be main-deckable in Modern: three mana for the sword, two more to actually equip it, and then you have to get through to deal combat damage as well
And since its a cantrip, its not ever really a dead card