Terraforming becomes really important here, so use it if you dont have a Mound Bound in your hand already
Elesh Norn, Grand Cenobite is high on the list because, well, its one of the premier reanimation targets
Whenever you cast a spell, each opponent reveals cards from the top of their library until they reveal a land card, then puts those cards into their graveyard
that alone would be powerful, but its also the gate we need to open for us to access the FTK
Whether playing with backgrounds, partners with, doctor's companion, or any other variation of partners, having two commanders means you're more likely to have one in play at any given time, and your lieutenants won't be turned offline by a single removal spell
If you are playing Carolyn Fern, keep this card in your deck and always save resources for it because this is the best Guardian card she can have in her deck.