Can I use Sprite Call to place a Sprite at a battlefield I'm currently contesting with my units?

Ruling: No, you cannot use Sprite Call to place a Sprite at a battlefield you are contesting. You can only play units to your base or to a battlefield you control.

Nuances:

• Even if you have units already contesting a battlefield, you cannot use Sprite Call to add the Sprite as an additional unit there
• The restriction applies regardless of how your units arrived at the contested battlefield (whether you moved them there or they were moved by another effect)