You channel necrotic energy into a mass of remains within range, fusing them into a single powerful undead servant. Choose either up to two piles of bones or corpses of Medium or smaller creatures, or a single pile of bones or corpse of a Large or smaller creature. The remains are consumed and rise as one undead creature with the DM's discretion
You can have no more than two creatures animated by this spell under your control at a time. If you cast this spell while already at that limit, the oldest creature you animated with this spell is released from your control.
The undead creature obeys your verbal commands. On each of your turns, you can mentally command it (no action required). If you don't issue a command, it defends itself. The creature remains under your control indefinitely. If the creature dies, you must use the spell on new corpse or bones.