Despite the world itself being smote down with the very sun, the damages itself wasn't too costly. This was due to, of course, the world being larger than what one would expect. Due to the idea and culmination of science and fantasy merging itself into one complete form of energy, the world itself would be infected in some shape or form. As a result, while most would see the world as the usual size of our real planet, in actuality it held nearly the size of Jupiter as a whole, a gas giant that dwarfed the other planets in the solar system. Such sizes are the result of magic being far beyond one's strength, and having the possible thoughts of such a world being near exterminated because it simply exists, leads the likes of other well-known mages to expand the very world to a bigger size, yet still yielding its gravitational pull and functions as what the Earth is as of now.
This exaggeration of size was further exemplified here, as the downpour came swarming down towards the scarred lands, the child absorbing the likes of Fleisher to compose his next summoning, having some amount of worry upon himself when he was viewing its destructive capabilities that nearly burned down the skin of this large world he stood on. The Marrow merely glared towards the boy, angered beyond belief and wishing nothing but for the child to drop dead as he stood. Before it would take a chance at attacking, however, the child would undergo a chant again, summoning his next beast to confront the likes of the Marrow. The creature knew from Harvard's expression, that he intends to finish this fight once and for all.
"Intorqueo, Vente...Flecto, Confractus."
"Cubi...quod suum mundum creat"
"Dilatentur dimensiones vestrae et comprehendant eos qui te negant..."
"Habeas figuram quae regulam tuam congruit in carcerem pro haereticis.."
"Non luceat eis lux sicut fenestris praeclusa est peccatis eorum.."
"Et fac eos Deus bene iudicat.."
"ARAWAREU!"
A blast of green light burst towards the cloudy skies, the Marrow approaching rapidly at the child's location, a strong slash towards his own head, launching out its still burning sap, whilst connecting itself to the ground to make the trajectory go faster, all at an attempt to blind and slaughter the Card Magician with the sap as its weapon. As the attack would connect, The Marrow would hit something else. Something far different. The summoning was successful, as what it hit would seem to be a black square. That square quickly multiplied itself and spread out, its shape unfolding itself as it reaches speeds the Marrow couldn't react to. It coated the very ground and lifted itself. It coated the sides and bared him away from escaping. It coated the very ceiling and let no light shine above it, the creature screaming in anguish as the box would fully imprison the lowly monster. Eyes and openings would be seen at the sides of this box, with such openings revealing the likes of a skeleton, as well as its skeletal muscles, and a black void that seemingly doesn't have a bottom in sight. The beast in theory was a Euclidean nightmare that only exists akin to its own kind. Its name...
"Dei supplicium locus..."
"...RUBIX!"
The chant was complete, if not for Harvard's own dramatic flair. He would quickly get serious and work on weakening the monster, casting a spell while doing some sort of motion with his hands. Similar to how one solves a rubix cube, he would gesture one of the cube's sides to twist itself. That motion became replicated almost immediately, with the Marrow's body now splitting itself down its middle, one half of its top being its bottom, and their bottom being their top on the other. The child did another motion of the cube, causing the Marrow to have its chest be twisted. Same went for its head, then its legs, then its arms, with each motion shrinking the cube more and more, what was arguably the size of a meteor, now the size of a mere container. The spell that Harvard casted was in the form of a Gun: Lemegeton. The weapon in question would then be inflicted with another spell: Fusion. He took one of his monster, Raphael, and infused it into the gun, granting it properties, as well as the monster's divine strength. He took arms with this holy creature towards his other friend, A snap of his fingers caused the likes of Rubix to open up 2 doors: one serving as an exit, the other as an entrance. The Marrow would desperately try to claw their way out of the situation, extending its limb through the entrance and made a last ditch effort to reach towards the ground for stability, yet it was no use. The fact that it exposed itself had the child hold the gun up high, aiming directly towards the hole that Rubix made.
"Gotcha."
BANG!
The bullet itself, infused with the fire-like archangel of Raphael, passed directly through the Marrow like it was butter, shooting directly through the holes Rubix made, before it closed them. Screams of the damned were heard harshly as the Marrow finally falls, the creature melted away into pure, unadulterated ash, the screams and cries molding itself into a deafening silence. The boy was victorious, as he'd lay down the gun at his side, panting, looking up, taking in every single droplet that came down from the clouds, as Rubix quickly disappeared, its purpose being served. It took so much out of the child, unable to see what is going on, his vision being blurred. He simply closed his eyes as he runs out of Energy, his magic bled dry due to the fight he had endured. He did it...
He killed the Marrow. It was a brutal fight, yet he succeeded with no issues. He was finally at peace, as he rests upon the wet ground, smiling in his tired state.