You've just defeated Igris the Blood Knight and you have a chance to use your Necromancy Powers on him

Since your yet to be reavulated you still hold the title of E- Rank. You can choose to become the strongest hunter of all, or be a vigilante in the night. You control this world

You can use your powers on him by saying the words "Arise" to make him one of your Shadow Soldier's

The corpse of Igris lay in front of you, what's your next move?