mtg ixalan cards Magic the Gathering Adventures: Set Review: Double Faced (DFCs) sacrifice it MTG Lost Caverns of Ixalan:

September 19, 2025 If an effect allows you to play a land or cast a spell from among a group of cards, you may play or cast a modal double-faced card with any face that fits the criteria of that effect

Righteous Valkyrie A 2/4 flying angel for 3 mana is already very solid by creature standards

As you would expect, this can lead to some niche yet nifty infinite combos, the best of which rely on the Eidolon cycle from Dissension combined with gating creatures like Sawtooth Loon or Shivan Wurm (one of the most valuable cards from Planeshift )

I could go on and on about each one and why, but that would be too much for a post like this