→ Permanents you control phase out during your opponents' turns, Your life total can't change during your opponents' turns, You have protection from everything during your opponents' turns
At the beginning of your end step, exile target noncreature, nonland card from your graveyard. Create a 3/2 red and white Spirit creature token.
, , Sacrifice a Spirit: Choose target card exiled with Quintorius. You may cast that card this turn without paying its mana cost. If that spell would be put into a graveyard, put it on the bottom of its owner's library instead.
Quintorius turns your graveyard into a token engine: each end step you exile an instant, sorcery, artifact, or enchantment to make a 3/2 Spirit, then later sacrifice those Spirits to recast the exiled cards for free. You grind value off spells and tokens, building a wide board while reusing your best noncreature cards, and close by going wide or chaining free big spells.
Generates a 3/2 every turn for free, building a board with no mana investment
Recurs powerful instants/sorceries/artifacts for free via the sacrifice ability
Vigilance lets it attack and still block, surviving better than fragile value commanders
Loves self-mill and discard, turning graveyard filler into bodies and value
Synergizes with token payoffs and aristocrats sac outlets
Both abilities are slow and need setup; little immediate impact the turn he lands
Free-cast ability is mana- and tap-gated, only one cast per activation
Relies on having noncreature cards in the graveyard to make tokens
Board wipes erase your Spirit army and reset the engine
No card advantage or protection built in; vulnerable to removal and counters