Renekton was once a staunch gatekeeper of ancient Shurima yo, but up in tha centuries since tha fall of dat once-glorious empire, dat schmoooove muthafucka has been consumed by madness. Now, he is lil mo' than a rage-fueled beast whoz ass seeks ta bust a cap up in his brutha Nasus, whoz ass his thugged-out lil' punk-ass believes is ta blame fo' his current state of mind.
Old (better) lore:
On a gangbangin' faraway ghetto, Renekton started doin thangs a gangmember of a race of bestial guardians pimped ta serve as tha rulaz n' protectorz of they playas fo' realz. Alongside his brutha Nasus, Renekton oversaw tha upkeep of tha Great Library, which served as both a vault of ancient knowledge n' tha repository of tha teachingz of tha Cycle of Life n' Dirtnap. While tha enlightened Nasus taught dem scholars whoz ass came ta study, Renekton served as tha Great Libraryz gatekeeper n' shiznit yo. Dude could sense tha legit naturez of dem playas whoz ass sought Nasus' teachings, n' da perved-out muthafucka busted away dem wit dark ambitions. Over time, however, his bangin repeated exposure ta dis evil infected his crazy-ass mind. Y'all KNOW dat shit, muthafucka! Dude grew furious wit tha malevolence up in tha heartz of men, n' as da ruffneck descended deeper tha fuck into madness, da ruffneck discovered his schmoooove ass could quell tha fury by cuttin tha evil from tha pimps whoz ass possessed dat shit. Unfortunately, tha relief was as short-lived as tha subjects, n' tha butcherz rage, as it came ta be known, would resurge even stronger.
Consumed by his thugged-out anger, Renekton turned on tha one bein whoz ass could defeat his ass -- his own brutha n' shit. Nasus pleaded wit Renekton ta peep reason. I aint talkin' bout chicken n' gravy biatch. Realizin dat da thug was beyond redemption, tha despondent Nasus valiantly struck down his wayward sibling. Defenseless, Renekton waited eagerly fo' dirtnapz release. Well shiiiit, it never came yo. Dude was spared when summoners from tha League of Legendz fronted his brutha n' shit. Caught up in tha wake of dis bangin spell, Renekton tumbled fo' what tha fuck seemed like ages between realities. Put ya muthafuckin choppers up if ya feel dis! When he finally emerged, he fell tha fuck deep tha fuck into tha sewerz of Zaun. I aint talkin' bout chicken n' gravy biatch. Insane wit fury, Renekton languished up in his newfound home, driven senseless by his bangin rage. That is until, by happenstance, his schmoooove ass caught a gangbangin' familiar scent up in tha air. Shiiit, dis aint no joke. Believin dat tha familiar scent would guide his ass ta tha solace dat was fadin from his crazy-ass memory, tha pimpin' muthafucka traced his brutha ta tha Institute of War.
"My fuckin brutha has become hollow. Full of rage yo, but empty."
Nasus, tha Curator of tha Sands