This is because they are legal on a case-by-case basis , rather than a blanket allowance or ban
Its a great fit for decks that naturally mill, that fill their graveyard, or that revolve around delirium
Given the significance of the legendary permanent here, Ill split up the Commander review into legendary and nonlegendary camps, like I did with the main set review
Relentless Rabbits (version #4) 1W Creature Rabbit 1/1 When CARDNAME enters, create a number of 1/1 white Rabbit creature tokens equal to the number of creatures you control named CARDNAME
We might not want to get so fancy, instead just using Avacyn as a raw power card: Creatures (13) Planeswalkers (2) Lands (26) Spells (19) Here were not really maximizing Archangel Avacyn, but its still a great card, and this way we get to put it alongside a bunch of other great cards
Llanowar Elves would be a nice mana producing creature, but I may use ramp spells like Rampant Growth that add more lands to the field while filling my graveyard as they were one time use spells
