
Bolas's Citadel3(B)(B)(B)Legendary ArtifactYou may look at the top card of your library at any time.You may play the top card of your library. If you cast a spell this way, pay life equal to its converted mana cost rather than pay its mana cost.Tap, Sacrifice ten nonland permanents: Each opponent loses 10 life.
Pros & Cons
Pros
- Can't be countered by Flusterstorm.
- Can cast cards using life as a resource instead of mana.
- Artifact for Mox Opal.
- Able to cast spells without a mana cost (See below).
- You are able to take game actions in between (unlike Ad Nauseam).
- Theoretically a win-condition.
- Can use fetchlands & cantrips to "sculpt" top of your library.
- Looking at the top card of your library doesn't randomly provide death (unlike Ad Nauseam).
- Ability can span over multiple turns, easier to "go-off" multiple times.
- You can cast cards from your hand (unlike Experimental Frenzy).
Cons
- One more mana than Ad Nauseam.
- Higher mana cost makes it worse against Daze and/or Spell Pierce.
- Can be destroyed/removed after first spell is cast.
- Two lands in a row can make you fizzle.
- Unable to sequence cards in a desired order (unlike Ad Nauseam).
Suspend
Something people may not realize is like Mind's Desire, you're able to cast spells without a converted mana cost off of Bolas's Citadel.This is very exciting, especially with cards like Ancestral Vision or Lotus Bloom. But I think it's important to not get caught up in, "the danger of cool things". In general, you don't want cards that don't do anything before you "combo-off" especially ones that don't do anything until turns four or five. It's part of the reason our deck struggles sometimes with Mox Opal as it's only sometimes functional before your Ad Nauseam, but at the very worst adds free storm. Cards like Lotus Bloom and Ancestral Visions can't even do that!In theory, you could load your deck up with Ancestral Visions and Lotus Bloom, use Brainstorm and Ponders to sculpt them to the proper places in your library similar to the Miracle mechanic. The issue with this is those things take time and time plays into the control deck's strategy where it's the opposite of what you'd like to do for combo. Which is why strategies like High Tide or Doomsday have fallen to the sidelines. Turns two to three are the fundamental turn for most combo decks and cards like Lotus Bloom or Ancestral Visions don't play into that. While you may blow your opponents out with these cards, are they really improving your odds?Post-Bolas's Citadel you'll be able to cast almost every single spell in your deck using your life total as a resource. If you're not, the deck has cards like Mox Opal, Chrome Mox, Lotus Petal, Lion's Eye Diamond, Rite of Flame, and Dark Ritual. Does it really need Lotus Bloom? Not likely. Similar things could be said of Ancestral Visions with Ponder, Brainstorm, and even Preordain.117.6a If an unpayable cost is increased by an effect or an additional cost is imposed, the cost is still unpayable. If an alternative cost is applied to an unpayable cost, including an effect that allows a player to cast a spell without paying its mana cost, the alternative cost may be paid.