Control

Control is the term used to describe who can use what card on the field. Most of the time, cards remain under the control of their owners, but a few cards can bend this situation.

Cards such as "Change of Heart", "Creature Swap" and "Enemy Controller" allow one to take control of monsters owned by one's opponent.

When a monster switches Control to you, place it on your side of the field. It is returned to the original owner's Graveyard when sent to the Graveyard in any way. you also control what cards are in your hand.