Edison format ruling
Goblin Attack Force

Card effect (current official text)If this card attacks, it is changed to Defense Position at the end of the Battle Phase, and its battle position cannot be changed until the End Phase of your next turn.
Rulings
- If Goblin Attack Force's attack is negated, it is not shifted to Defense Position at the end of the Battle Phase.
- If you attack with Goblin Attack Force and it is shifted to Defense Position with its effect, if your opponent takes control of it during their following turn they cannot manually change it to Attack Position.
- When you attack with Goblin Attack Force, its Battle Position cannot be changed until the end of your next turn:
- Turn 1: You attack with Goblin Attack Force. It is shifted to Defense Position.
- Turn 2: If your opponent takes control of Goblin Attack Force, they cannot manually change it to Attack Position.
- Turn 3: You cannot manually change Goblin Attack Force to Attack Position.
- Turn 4: If your opponent takes control of Goblin Attack Force, they can manually change it to Attack Position.
- Turn 5: If you still control Goblin Attack Force, you can manually change Goblin Attack Force to Attack Position.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Edison forum — sourced change requests get reviewed.