Gargonis Draconis

Normal Spell Card

Discard 1 EARTH Machine monster; draw 2 cards, then if the discarded monster was a Union Monster, Special Summon it from the GY. During the Main Phase (Quick Effect): You can banish this card from your GY; negate the effects of all Dragon monsters on the field, and swap their ATK/DEF. You can only use 1 effect of "Gargonis Draconis" per turn and only once that turn.