If the enchanted player somehow has more than two main phases in a turn, each main phase other than the first one is a postcombat main phase, and Shadow of the Second Sun's ability triggers at the beginning of each of them
In general, this deck doesnt need to win the game as soon as possible - you can and will win long games, even against control decks
Devouring three creatures will produce nine counters, and so on. It doesnt help that Devour is a niche mechanic appearing only on a handful of cards from way back in Shards block and with spotty support in supplemental sets since
It also allows players to attach a Grass energy from the hand to any Pokmon on the board and heal 30 damage from the Pokmon that energy is attached to
Flying and haste are some of the best keywords in casual EDH these days
Swapping in the Spirit Dragon Teval, the Balanced Scale gives you a neat ramp package when attacking, letting you mill three cards and then get a land from your graveyard back to play