Rumble Rework??

Rumble, The Scrap Warrior

I think we can agree that rumble is a very weird and niche pick. His class is supposed to be a melee harass with some light cc with his slows. But his kit doesn't really show that kind of game play. His existing passive acts like a counter to himself, it leads to odd instances where you engage on an opponent burning all your ability's to get your passive but they just end up kiting you around. I think changing his class and touching on some of his ability's could bring him back into the meta.

Class: Mage 550 Hp, Mana None, Hp Growth per level 85, Base stat resistance Armor 28, Magic Resistance 32, Base attack 63, Base Attack speed 0.647, Attack speed Growth 1.83%, Movement speed 335.

Passive (Finder's Keepers) Piles of scrap will now spawn around the map, Rumble can pick up these Scrap Piles converting them to a new currency called "Scrap". Rumble can use this "Scrap" to upgrade his ability's.

Q Ability (Mortar Fire), Damage (70,90,110,130,150), 0.3 (AP) scaling, Cool downs (15,12.5,11,9.5,7)

Rumble will channel this ability for 1 second, then will shot a ball of scrap metal into the air, when it lands it will dealing damage in an area and slow anything hit by 50% for 1 second. (Upgrade) Rumbles (Mortar Fire) Deals more damage and will now stun anything hit.

W Ability (Photon Barrier), Barrier Health (40, 50, 60, 70, 80), Movement speed (10%, 15%, 20%, 25%, 30%) Channeling reduction (0.2s, 0.4s, 0.6s, 0.8s, 1s)

Rumble gains a shield for the next 3 seconds, while (Photon Barrier) is active it increases his move speed and reduces the channel time for his ability's. (Upgrade) Rumbles (Photon Barrier) Giving him a bigger shield, While (Photon Barrier) is active Rumble gains more movement speed, has even less channel time.

E Ability (Hydraulic Cannon)

Rumble Channels (Hydraulic Cannon) For 2 seconds before firing a high powered laser that passes through enemy Champions and minions in a straight line. Enemies hit by (Hydraulic Cannon) take damage and are slow for 2 seconds. (Upgrade) Enemies hit by (Hydraulic Cannon) take more damage and missing health damage, this ability will also leave scorched ground where ever the laser hit, anything that steps on this Scorched Ground takes damage and is slowed

R Ultimate Ability (Oil Spill)

Rumble shoots canister in a straight line choosing which direction to place them in. These canister spill out "Oil" onto the ground and enemies, when hit with either Rumbles Q or E the "Oil" will ignite cause the "Oil" on the ground and enemies to burn dealing damage over time for 4 seconds. (Upgrade) The "Oil" from Rumbles Ultimate deals Maximum health damage over 4 seconds.

This was my concept for Rumble. I like Rumble but i just feel there is a lot of wasted potential with his kit right now. His kit doesn't really convey his scrap warrior setting all that well but i think with some of these changes i think he could be what his lore allows.