Shortly before the launch of Edge of Eternities and its all-new Spacecraft cards, Magic: The Gathering's Commander format had one of its biggest rules shakeups in recent memory
It ensures your non-token creatures keep coming back to your hand unless your opponents choose to lose a pretty significant amount of life
If the token is variable (X/X), put the formula in the rules box exactly like the creating card does, so nobody has to guess
The Mechanics The plane and cuteness definitely lie on the aesthetic side of Bloomburrows success
Theres no downside to animating your library either if it were to be destroyed or removed from the battlefield, you just put your library back to just being a library
Vorinclex, Monstrous Raider Counter doublers are very effective in Magic, so having Vorinclex, Monstrous Raider readily available in the command zone is very powerful