Nunu & Willump Prehistoric

Hello League of Legends. Apologize for my potential bad english. Please read until the end. Prehistoric Nunu & Willump. Willump would be a T-rex (who remains cute and keeps his four arms). Nunu would wear an animal skin like a Cro-Magnon man and his chromas would be tiger, jaguar, panther and lion. Nunu's flute is a bone. Willump also changes with each chromas, like stegosaurus, shark-looking, triceratops and ankylosaurus (he got spikes on his back). His Q (consume) would remain the same but with extra effects like dust or blood. His W (biggest snowball ever!) would be a giant rolling stone like Indiana Jones with extra effects every time it gets bigger (more dust, floating stones...). His E (snowball barrage) would be mud (inspirated by the Barroth from Monster Hunter). For his ultimate (absolute zero), I have two ideas : 1) During the casting the area starts to be slowly covered by sand/rocks and an earthquake rages at the end of the ultimate (similar to rammus but more detailled and the earthquake grows during the duration of the ultimate). 2) The ground is slowly getting covered by volcanos (or one big in the center, just under Willump's feets) and as you can guess a volcanic eruption triggers at the end of the ultimate with lava everywhere (for a very short duration). This skin would be Ultimate of course, and it will be in the "Beast Hunters" collection (Tryndamere, Sejuani, Draven...) but it will not be one, it will be an antagonist of them, so we extend the family. PS : His dance would be Willump taking out sunglasses and gesticulate right to left (understand if you can). Of course you can change whatever you want on this idea, I just want to start a sparkle).