When Malphite punches the ground with his Šablóna:Ai attack, he leaves a glowing fist imprint of the Riot Games logo.
Malphite is one of a few champions that actually have multiple textures in one skin. When his Šablóna:Ai passive is broken, he appears as though he is made of molten rock until the passive recharges and then reverts back to his normal texture. When Malphite activates Šablóna:Ai he has a different type of molten rock texture with glowing arms.
His /joke is the old saying "Caught between a rock and a hard place", which basically means you are in a position where you have to choose between unpleasant alternatives, neither of which is an optimal situation.
Malphite comes from another world called the Monolith. It is a world of perfect harmony, where the essence of all its denizens are but singular pieces of the whole.
Although Malphite disagrees with Šablóna:Ci view of life as a curse, Malphite also stated that he is "... proud to call the Twisted Treant my ally", suggesting that these two elemental champions get along quite well despite their differences.