split cards mtg card each player votes for denial or duplication Split Up | Duskmourn: House

When Niv-Mizzet Reborn enters the battlefield, you reveal the top ten cards of your library and then for each color pair, you choose a card thats exactly those colors from among them

There was once a time when you'd see it pop up in Vintage Mishra's Workshop decks, though it's dropped off there, and is no longer a staple in Commander

Youre playing them all

If you cast a spell with an alternate cost (like pitching a spell to cast Force of Will) then it does not count as your spell for the turn

You can cast a creature spell for its dash cost only when you otherwise could cast that creature spell

We also have a comprehensive breakdown of all Naya lands in Magic, if you're working on your mana base