rayquaza the pokemon card GS Gold Metal Colorless Aeroscream (130) Flip a coin Rayquaza - Pokémon TCG: Call

At least you can play this in goblin EDH decks

Im a personal fan of the phoenixes that play into a certain archetype or mechanic, like Ashcloud Phoenix and morph or Spellpyre Phoenix and cycling

By tying the mechanic to beginning of combat, it helps communicate the flavour of the mechanic, while also lowering the complexity of the mechanic from "any time during an opponent's turn" to "before combat"

Red and Green is a great combination for a lot of things, but its beginning to feel a bit like Boros when it comes to commanders

If you just cast it on turn 3 and follow up with a huge creature on turn 4, copying that creature will already have paid you off for taking the time to cast her