Whenever you cast a red instant or sorcery spell, you may exile a nonred instant or sorcery card from your graveyard. If you do, you may copy the exiled card and cast the copy without paying its mana cost.
Whenever a white creature you control enters, you may exile a nonwhite creature card from your graveyard. If you do, create a token that's a copy of that card.
(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) Create a Treasure token. (It's an artifact with “{T}, Sacrifice this artifact: Add one mana of any color.”) For each color, return up to one target creature card of that color from your graveyard to your hand.
Create three 1/1 colorless Spirit creature tokens.
“Before we found aether, every ghost hung around forever. You could contain em, chase em off, but never be rid of em for good. Now we've got a fighting chance.”
Prismatic — Whenever you cast a multicolored spell, you may pay {1}. If you do, exile target nonland permanent, then return it to the battlefield tapped under its owner's control.
When Tantalizing Glutton enters, create a green Aura Curse enchantment token named Just Out of Reach attached to target player. The token has enchant player and “At the beginning of each of enchanted player's opponents' upkeeps, if that player doesn't control a Food, they create a Food token.”
You may play Tectonic Chateau from your graveyard as long as seven or more cards are in your graveyard. Tectonic Chateau enters tapped. {T}: Add {R} or {W}. Cycling {1}{R}{W}({1}{R}{W}, Discard this card: Draw a card.)
Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.) Whenever Tegan, the Sparrowhawk attacks, you may pay {R/W}. When you do, Tegan deals 1 damage to target creature if it's tapped. Otherwise, tap it.
Art of war — At the beginning of your end step, if Teikoku Daimyo dealt damage to an opponent this turn, put a +1/+1 counter on each creature you control that attacked this turn.