Anathemancer This is Price of progress
Geth, Lord of the Vault + Chainer, Dementia Master Reanimating creatures from your opponents graveyards is cool, but Geth, Lord of the Vault and Chainer, Dementia Master have such high casting and activated ability costs
I am sure you can see why it's here
However, triggered abilities (such as landfall abilities) will see that a land entered the battlefield and not a creature
Its just for aesthetics
The focus with Ib as Commander should be, in my opinion, to perform sacrifices while others create enchantments and creatures and a supply of cannon fodder, also in combination with further sacrifices, like Pashalik Mons or Goblin Warrens