Seedborn Muse plays best in decks with lots of activated abilities and card draw to sink all that mana intoKenrith, the Returned King quickly comes to mind
Moreover, collecting can be an investment
Several cards care about the number of Allies you control or Allies entering, so focus on going wide with cards like White-Black Sacrifice If you'd rather use your creatures for more macabre abilities, then the white-black sacrifice archetype is for you
With a smokey white Eevee in the box and multiple crystals surrounding it, this Eevee flexes that it can become so many different types
Stroke of Midnight sees competitive metagame play in 2 format(s): Commander, Brawl
Whenever you cast a noncreature spell, put a +1/+1 counter on Vivi Ornitier and it deals 1 damage to each opponent