Adaptive Alpha Mold

Modular

Action - 0: Equip this to another equipment zone.

Battleworn

Rulings

From the Super Slam release notes

When resolving Adaptive Alpha Mold’s activated ability, you must equip it to an available equipment zone that is empty and that does not have anything equipped to it. That includes not only your but your opponent’s equipment zone as well.
You cannot equip this to a weapon zone.

Keyword notes

Modular - This may be equipped to any equipment zone. It has the subtype of the zone it’s equipped to.

Modular is a static-ability keyword.
Modular does not allow you to equip any other heroes equipment zones, only your own.
Equipment zones include the Arms, Chest, Head, and Legs zones. The weapon zones are not considered equipment zones. You can not equip a card using the Modular ability as though it were an off-hand or quiver equipment etc.

All keywords

Battleworn - Equipment that wear down after each time they are used to defend. If you defend with a card with Battleworn, put a -1{d} counter on it when the combat chain closes.

When you defend with a card it remains on the combat chain until the chain closes, therefore you cannot defend with an equipment multiple times on the same combat chain.
A -1 counter stays on the card until the card is destroyed or the game ends.
If the defense of a card that is defending is below zero, its defense value is considered to be zero.
When this card is destroyed, it is sent to your graveyard. (Not when it has 0)
When this card is destroyed, it is sent to your graveyard.
If the defense of a card that is defending is below zero, calculate as if its defense is zero.