That distinction helps with verification
Theoretically, you could make a really good deck early on and win against the League, which is why the game doesnt let you do that and artificially gates your progress
You play them to be safe against walkers and have outs to the odd card like a Smokestack without having to play the narrow disenchant
Heres a Pridemate I wont meme on
You also have a Colorless Energy requirement for Dash Attack, giving every Arceus deck, regardless of type, a way to hit the Bench and combo with Cyrus
Returning Keyword Ability: Bestow Originally appearing in the Theros set, the bestow mechanic lets you cast certain creatures as Auras, giving them a chance to boost another creature before they serve as creatures themselves