The name of the game is land drops, and Nissa both guarantees one from a creature and benefits the strategy of continuing to make land drops, whether for landfall or simply to cast your big mana spells
Depending on which strategy you focus on, you'll want all four or none of the above-mentioned Zombies
In Commander, I suspect Morophon will crack the Top Ten Most Played Commanders very quickly
Its colorful filler that will occasionally hurt you vs
Instant Color tag templates(None) Supernatural Stamina Until end of turn, target creature gets +2/+0 and gains "When this creature dies, return it to the battlefield tapped under its owner's control." Instant Color tag templates(None) Undying Evil Target creature gains undying until end of turn
Its an strong option for Commander decks that run mostly legendary creatures, like Esika, God of the Tree, and Jodah, the Unifier