Once per turn, during your Main Phase, if you control this monster on the field, you can equip it to your X-Head Cannon as an Equip Spell Card, OR change it back to a monster in face-up Attack Position. When equipped to a monster by this card''s effect, that monster''s ATK/DEF is increased by 400 points. (1 monster can only be equipped with 1 Union Monster at a time. If the monster that this card is eqipped to is destroyed in battle, this card is destroyed instead.)
![Y-Dragon Head [Dark Revelation Volume 1] [DR1-EN060] | Enigma On Main](http://enigmaonmain.com/cdn/shop/products/23847_200w.jpg?v=1570481147)
