Rammus has some feats not used in his reasoning. From his bio and color story respectively.
Whether he is truly a wise oracle, Ascended deity, or a mighty beast, Rammus is known for his miraculous feats of endurance. He entered the impenetrable Fortress of Siram, an imposing bastion designed by a crazed sorcerer. The structure was said to contain untold magical horrors - fearsome beasts mutated beyond recognition, corridors wreathed in flames, impenetrable tunnels guarded by shadow demons. Not an hour had passed when the enormous fortress collapsed in a plume of dust, and Rammus was seen rolling away. None knew why Rammus entered the darkened gate, nor what secrets he learned within the basalt walls of the fortress. In the year of the great flood he crossed the vast lake of Imalli in just two days, and dug many miles deep to destroy a giant anthill and kill its queen, whose daughters had devastated the nearby farmland.
Sometimes he appears as a benevolent hero. When invading Noxian warbands attacked a Northern Shuriman settlement, disparate tribes banded together to defend the territory beneath the Temple of the Ascended. They were no match for the invaders in size or skill, and the battle was all but lost when Rammus entered the fray. Each side was so shocked to see the elusive creature that fighting halted completely as they watched him roll between them. As Rammus passed the towering temple, the foundations of the building shook, and enormous stone blocks toppled onto the invading army, crushing many of its warriors. Now outnumbered, the army retreated to elated cheers from the Shurimans. While many swear Rammus saved the town out of love for Shurima, others argue he was merely defending the territory in which his favorite cactus flowers grew. At least one tribesman claims Rammus was simply sleeprolling and had no intention of taking down a temple.
Caravan North
The beetles froze abruptly, halting their attack. They hunkered low to the ground, antennas flexing. In the silence, Ojan heard a distant whirring. He watched the western horizon as a sand cloud rushed toward them in a fury of dust. The family brandished their weapons in readiness to fight this new threat.
A round armored shape exploded from the flurry of sand and smashed into the nearest beetle with terrible force, crushing it to pulp.
The shape barreled on, smashing beasts left and right. Though the insects snapped at the shape with their sharp pincers, it was unstoppable, and in a moment, no living Kmiros remained.