It is worth calling out here that, yes, Tarkir: Dragonstorm
Mega Starmie exs damage-spreading capabilities are especially popular in tournaments, Mega Zygarde ex has a ton of Fighting-type support, Mega Dragonite ex boasts one of the most powerful attacks in the game, and Mega Skarmory ex can threaten key support Pokmon, such as Meowth ex
Likewise, any cEDH pod with red is going to have Dockside Extortionist
But even if youre lacking, Caesar can generate two Creature tokens for the price of one, ensuring that youll never run out of fuel unless a boardwipe comes along.
It mostly depends on the board, how much mana you have access to, and how you think the next few turns of the game will go
Theres just something powerful, mysterious, and scary about creatures that change form