Search your library for up to three monocolored cards with different names and exile them. An opponent chooses one of those cards. Shuffle that card into your library. You may cast the other cards without paying their mana costs. Exile Emergent Ultimatum.
{4}{B}, {T}: Target player discards two cards. Activate only as a sorcery. Channel — {5}{B}{B}, Discard this card: Target player discards four cards. Activate only as a sorcery.
Discard a card: You may cast a creature spell from your graveyard this turn. Activate only once each turn. Whenever a nontoken creature you control enters, if you didn't cast it from your hand, it gains haste until your next turn.
"Choices belong to those with the luxuries of time and distance. We have neither. I recommend we proceed with the plan to destroy all shrines of the kami." —Lady Azami, letter to Sensei Hisoka
Enchant creature Whenever enchanted creature attacks, put a +1/+1 counter on it. Then if it has three or more +1/+1 counters on it, sacrifice this Aura. When you sacrifice this Aura, target player discards two cards.
Cauldron Familiar can't block. When Cauldron Familiar enters, each opponent loses 1 life and you gain 1 life. Sacrifice a Food: Return Cauldron Familiar from your graveyard to the battlefield.
Exile the top seven cards of your library. Until end of turn, you may cast spells from among them. If this spell was cast from your hand, add ten mana of any one color.
Deal Damage deals 4 damage to any target. Gotcha — If an opponent says "deal" or "damage," you may say "Gotcha!" When you do, return Deal Damage from your graveyard to your hand.
{2}{W/B}{W/B}: Second Little Pig perpetually becomes a Boar Spirit with base power and toughness 4/4 and gains flying. Activate only if Second Little Pig isn't a Spirit.
Eerie — Whenever an enchantment you control enters and whenever you fully unlock a Room, surveil 2 if this is the first time this ability has resolved this turn. If it's the second time, each opponent discards a card. If it's the third time, put a creature card from a graveyard onto the battlefield under your control.
When you encounter Spatial Merging, reveal cards from the top of your planar deck until you reveal two plane cards. Simultaneously planeswalk to both of them. Put all other cards revealed this way on the bottom of your planar deck in any order.
Whenever a creature attacks you or a planeswalker you control, each Dragon you control deals 1 damage to that creature. [+1]: Until end of turn, each planeswalker you control becomes a 4/4 red Dragon creature and gains flying. [–3]: Create a 4/4 red Dragon creature token with flying.
Compleated [+1]: Add {R}{G}. Spend this mana only to cast creature spells or activate abilities of creatures. [–1]: Create a 3/3 green Phyrexian Beast creature token with toxic 1. [–4]: Lukka deals X damage divided as you choose among any number of target creatures and/or planeswalkers, where X is the greatest power among creatures you control as you activate this ability.
Vigilance Whenever Cass or another creature you control dies, if it was enchanted or equipped, return any number of Aura cards that were attached to it from your graveyard to the battlefield attached to target creature, then attach any number of Equipment that were attached to it to that creature.