card proxy mtg Custom Understanding Proxy Cards in Magic:

Ormendahl, the Profane Prince The most recent demon to grace the cube and it is quite the unusual one given that it starts life as a land

Flashback will probably still be the most dominant way to take advantage of Sevinne, with a much greater saturation of cards with the mechanic (plus cards that favorably interact with flashback, like Burning Vengeance or Secrets of the Dead)

Table of Contents show What Makes a Strong Commander Deck

If the target creature is an illegal target as Winter's Intervention tries to resolve, it won't resolve and none of its effects will happen

but I think any card that carries two or more points of devotioneasy in a mono colored deckand also supplied multiple bodies is going to be very successful here