Dorome, Hivemind

If Dorome, Legion hivemind is your commander, choose a creature type before the game begins.

Eminence - If Dorome is in the command zone or in the battlefield, creatures you control are the chosen type. The same is true for creature spells you control and creature cards you own that aren’t on the battlefield.
When Dorome enters, draw a card for each creature you control of the chosen type.