Rule 439.4

Unless specified otherwise by the Game Effect that Creates a Game Object, any such Game Object is owned by the player who Created it. Control is established as usual for Game Objects of the appropriate type.

• 439.4.a A Created permanent, rune, legend, or spell is controlled by its owner as it is Created.
• 439.4.b A Created battlefield is uncontrolled as it is Created.

Official Core Rules