I would buy a rainbow factory
I've been thinking about this for a while, and maybe it already exists as a custom skin (If so, please point me there as fast as pointingly possible), but I would definitely love a Prismatic
skin. Here's what and why.
Prismatic xerath, basic skin but instead of sarcophagus shards orbiting his blue energy-body, it'd be crystal shards orbiting pure light, creating rainbows on emotes and setting the mood for disco.
His Q would charge up a ball of swirling, seven-colored light before unleashing a prismatic ray (Not the D&D spell) not unlike
's laser (I'd figure it could be opalescent or something so it isn't a copy)
W's pretty simple, with the already existing leprechaun
's rainbow meteor, but has a bit more opportunity for creativity. For example, where the meteor strike just shatters the ground and disappears, Xerath could have his W-bomb paint the area with a multi-colored blast on the ground and leaving a small pool of molten rainbow (His Scorched Earth (fire) version already leaves a pool of lava for a moment so it would be most fitting)
His E is quite easy, with the main projectile being an opalescent ball of light, while the trail could be a faint rainbow.
His ultimate is however even clearer, as the arcing projectiles are just BEGGING you to leave a rainbow trail across the skies, bringing doom and happiness in equal parts.
Another interesting thing is that Xerath fires lightning, lava or ??sandbeams?? but this skin would make a clear laser-themed champion of everyone's favorite mid-laner (It is. No exceptions). This would mean players at the mid lane can opt out of the
pick should they ever wish to shout "IMMA FAYRAING MA LAZOR!" while engaging the ennemy. This is a legit reason to make a skin. Also it would look awesome. And rainbows.
If this ever becomes a thing, I will spread light, lasers and joy on Summoner's Rift every chance I get to mid. Or support. Thumbs up for rainbows :)