1 Tuner + 1 or more non-Tuner LIGHT monsters At attack declaration, if this card battles another monster: You can have this card lose 500 ATK and DEF (permanently), and the monster this card is battling loses 1500 ATK and DEF until the End Phase.
Night Beam, Cosmic Cyclone, Wild Tornado can destroy it. I see people running those cards if they run into this problem.
If i could find a good deck for this & dark end dragon together, i'd use Power of The Guardians to get back that 500 Atk loss so their attack remains the same after each time it's effect is use along with World Legacy Clash. And with that Forbidden quickplay that gains 400 attack but negate it's effect