Adding to your board while generating mana is just a powerful play pattern
You've got a significant selection of morph and disguise creatures to give the deck options , but you also have some creatures that are just generally good without fitting the overall disguise theme (lookin' at you Seedborn Muse and Scourge of the Throne)
The game also included nearly all the cards from the Base Set, Jungle, Fossil, and Team Rocket, with a promotional Lugia card included in the game
Bello, Bard of the Brambles makes those particular cards turn into 4/4 Elemental creatures, in addition to their other types during your turn
These are cards that you deploy on the playing field when activated
During the active player's turn, at any time they could cast a sorcery, that player may roll the planar die