Makarov took a good look at Claudius, he quickly came to a realization that if magic is his greatest strength then it can also be his greatest weakness.
"Everyone!" cried Makarov. "The cultists are just cannon fodder. We can fight them all day, and they'll just rise again. We need those of you whose powers and skills are best used in mass attacks to hold off the hordes. The rest of you, focus your magic on Claudius!. He's the key!" Once he's defeated the rest of them will fall!"
Everyone who's magic could provide some sort of protection against the horde of cultists gathered together.
"Star dress" said Lucy. "Aries form!"
"Regulus Lion Brilliance!" Loke exclaimed,
"Fairy machine gun!" shouted Evergreen. "Leprechaun!"
"Magic fusion!" Gray and Juvia shouted "Ice wave!"
"Lightning dragon roar!" yelled Laxus.
"Open, gate of the archer! Sagittarius!" yelled Nashi.
"Glad to be of service! Lady Nashi!"
Nashi placed Aquarius's key in a small puddle of water. "Open, gate of the water bearer! Aquarius!"
"She can open more than one gate at a time!?" Aquarius exclaimed in excitement before she turned to Lucy and began to glare at her. "That's it, where is my key? You are giving it to her this instant!"
"I'm really sorry Aquarius," Lucy apologized fearfully, " but she's still just a baby.".
As Lucy was calming Aquarius down the main forces were gathering for what they knew deep down, win or lose, would be the final assault. They understood how high the stakes were and readied their strongest attacks.
"Solid script!" exclaimed Levy.
"Iron dragon roar!" yelled Gajeel.
"Sky dragon roar!" shouted Wendy.
Erza requipped into her celestial armor. "Grand chariot!"
"Heavenly body magic! Lightning stars!" Jellal called out.
"It is my honor lady Nashi!" he replied as he fired many arrows into the sky.
Bisca and Alzack readied their guns and began to continuously fire Claudius.
"Alright sweetie you ready?" asked Natsu.
"I'm ready dad!" she replied, all fired up.
"Fire dragon roar!" both of them shouted.
Regardless of his form, Claudius consumed the magic of all their attacks, rendering all of it useless. No matter what was thrown at him. To add to their struggle, it wasn't long until they realized he was also absorbing what magic they held within their bodies, whether cast or not, along with the latent magic which resided in all their surroundings. Soon there would be nothing left.