s007 Cosmic Cube (light object)
Indestructible
Equip: Any
Unequip: Drop
EFFECT: FREE: An opponent chooses Speed, Attack, Defense, or Damage and you then choose a standard power that isn't of the chosen type. Until your next turn, as long as the Cosmic Cube is equipped, modify the combat value of the type chosen by your opponent +1 and this character can use the power you chose. At the end of your turn, roll a d6 if this character doesn't have the Cosmic keyword. 1-2: Unequip the Cosmic Cube.
Point Value: 30


So just to verify that I understand this object correctly. The end of turn roll to drop the cube is still part of the FREE action effect. It's not something that just happens at the end of every turn regardless of whether or not I activated the free action. If it was completely separate from that FREE activation effect it would have this // between them.
Correct?

That is correct, and the roll only occurs if the equipped character does NOT have the Cosmic kw.

Correct. If you didn't give the FREE, you didn't activate the effect that calls for the d6 roll.

Poor red skull.....always dropping that cube.