Shard of the NightbringerShard of the Nightbringer having a cast trigger is a real disappointment with no way to get it back to hand, and Trazyn the InfiniteTrazyn the Infinite and Convergence of DominionConvergence of Dominion don't really do much in the deck
However, what's more important is it may punish decks with too many Exs
From the moment you use this attack, you must begin to sing a song, it says
Card Draw is Mathematical We spent a lot of time doing hypergeometric calculations in the first discussion on mana, so I dont want to dive too deep into that again, although we can use that math to demonstrate exactly why card draw is so valuable
Vivien, Arkbow Ranger Minus 5 loyalty for this is impossible if youre using Vivs fight ability, which seems the most common use for Vivien, Arkbow Ranger
Zendikar Rising brought new double-face card technology with spells that you can play as lands on the reverse side, giving us a bunch of Commander-quality options for ensuring we make land drops early and draw more gas late-game: When these first came out, there was a lot of discussion about whether these they count as spell slots, land slots, or half of each