yugioh card fusion Instant | Details Fusion Guard - Yugipedia

This versatility is important, as March of Swirling Mist can either protect your creatures or phase out your opponent's, which is crucial when you're being attacked or trying to bypass a difficult blocker

especially if you dont mind parting with a couple of Blue-Eyes White Dragon cards

if it's not, it can be part of your army but not at the helm

Obviously these may be a miss for your format for other reasons (power, archetype mismatch, rarity, don't run planeswalkers etc) but here's a few that I found interesting, divided by broad category rather than color: Actual Modal Dual Faced Cards: While I'm still not done reading Cosima, God of the Voyage (I'm on chapter 2, the language is a bit dense) these cards are ones I do like both sides of