Without being able to cast Become Immense by filling the graveyard, the deck needs another way to get ahead on the battlefield or protect its creatures better
I believe Emberwilde Captain to be a serious consideration for many of the same reasons that I like Wheel of Misfortune
Sometimes, you just cant help a title
As you might have guessed, these preview cards all fit well into a deck full of Sliver Creatures, but some of them also have cool uses elsewhere as well
But always default to price
Nevinyrral, Urborg Tyrants steep mana cost and conditional token generating effect makes it unlikely youll be casting it much ahead of the end game, but the sheer number of Zombie tokens it can produce is staggering, especially since it counts all creatures, tokens included