You can only use the 2nd effect of this card’s name once per turn.
(1) Once per turn, you can either: Target 1 Effect Monster you control; equip this card to that target, OR: Unequip this card and Special Summon it. If the equipped monster would be destroyed by battle or card effect, destroy this card instead.
(2) You can return this equipped card to the hand; equip 1 of your banished Union monsters to 1 of your appropriate monsters, as if it were equipped by that Union monster’s effect, and if you do, Special Summon this card from your hand.