Since the Final Fantasy decks are pretty new, anyone who hasn't been testing them ahead of time online through unofficial channels like Tabletop Simulator or Cockatrice likely hasn't gotten a good idea of how well each deck plays just yet
Elvish Spirit Guide Free mana sources tend to work best in more competitive decks, but Id consider Elvish Spirit Guide for almost any deck where your commander is very important
If you have a sizable force, you cant go wrong with mass pump effects like Rally the Peasants or Heroic Reinforcements, provided you're in the right colors
When cards like Emergent Ultimatum or Ugin are in the format, there's a ton of pressure to either win the game very quickly or have some sort of direct way of interacting with them, which is usually only found in Blue or Black
You can jump in and be playing Magic against a human opponent within a minute or so of launching the client, you can use any of several included pre-constructed decks for free, and I never had to wait more than a few seconds for a game
Sublime Epiphany If you enjoy casting big counterspells, you cant do much better than Sublime Epiphany
