[Rework Suggestion] [Game Mechanics] Malphite

Initial considerations: I've already made another suggestion of Rework for Malphite, but I read Malphite's new tale "Roots of a Poisoned Tree", and my mind exploded with ideas.

• Passive: Malphite knows rocks like himself, being able to detect exotic ores in his bowels. Going over these ores causes Malphite to absorb them and gain a random effect. Effects:

1. Igneous Niobyrite - For x seconds enemies that touch Malphite will suffer x magic damage.
2. Titanic Leadiron - For x seconds Malphite will have an extra x of maximum life.
3. Quartz nitronithium - For x seconds the basic attacks of Malphite will cause x of slowness to the enemies.
4. Mercurial Chromite - For x seconds Malphite gains x of movement speed.

• Q - Launching mountains: Malphite collides both fists against the ground, sending a shock wave around him that lightly pushes enemies and allies, launching a mountain into the air in a fixed position. The mountain will remain in place for x seconds, in case Malphite picks it up, he can launch it against an enemy, causing damage and slowness. NOTE: I say "a mountain", but it's just a standard boulder in the game, it will not raise a mountain the size of the map, ok? lol The "fixed distance" would be the equivalent of Ornn's Q, he can only choose the direction from which the mountain will rise. If the enemy is underneath the mountain while it falls, it will suffer damage.  
• W - Monolith: This ability has two charges, in the first cast Malphite merges with the earth for x seconds, being able to move faster and to shape the rock. Rocks will rise by following the mouse pointer, the more the mouse moves in an area, the more the area will be shaped. Moving the mouse x times in an area, turning it into an area of ​​slowness, moving more x times will raise the area, turning it into a temporary wall. After x seconds in this mode, Malphite will emerge from the earth, activating the ability a second time will cause Malphite to unite again, but time will shorten and its rock formations will act more aggressively, raising enemies or opening small cracks. NOTE: Malphite can still be hit while swimming on land. Malphite spends mana while casting rocks. I think it would be better if this skill, instead of having two activations, would have only one activation that models the rocks in a normal way, but if he had used a skill previously in the place, by activating this ability he would model the rock more aggressively than the second activation).  
• E - Tectonic Punch: Malphite uses his force capable of crashing moutains to punch the ground by emitting a tectonic impact wave that deals damage to enemies and opens an abyss, enemies that cross the middle of the slit will fall and become rooted for x seconds.  
• R - Terraform: Malphite advances straight and deals damage to hit enemies in an area, throwing them into the air. Going through walls makes a temporary hole in them, allowing both enemies and allies to cross it.