One of the cards from War of the Spark looks like a pretty strong combo piece.
Sure, 6 mana is a lot, but the citadel is basically combining Channel and Yawgmoths' Bargain in a single card which is strong enough to enable a win if it resolves from an empty board and hand. Although there is a challenge because 'play off the top' means that topdeck lands aren't ideal.Quote:
3BBB
Legendary Artifact
You may look at the top card of your library 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.
{T}, Sacrifice ten nonland permanents: Each opponent loses 10 life.
That means it could work in some kind of GB "Belcher" deck approach where there just aren't very many lands in the deck.
4 Land Grant
2 Bayou
4 Lotus Petal
4 Chrome Mox
4 Elvish Spirit Guide
4 Manamorphose
4 Dark Ritual
4 Cabal Ritual
4 Lion's Eye Diamond
...
4 Bolas's Citadel
4 Tendrils of Agony
Another option for dealing with the 'top deck land' issue would be a package of Thoughtlash and Enlightened Tutor to exile any undesired cards off the top while going off and Aetherflux Reservoir as a way to offset the life costs.
It might also be possible to get to a critical mass of filter cards like Ponder,Brainstorm and Preordain to both set up the combo turn, and then draw lands while going off.
I expect we'll see people trying Sensei's Divining Top/Bolas's Citadel decks in vintage.