[Warframe Champion] Atlas

I'm turning Warframes into potential champion concepts, based off of their actual abilities and passives in the game (tuned of course), and this is my second one, Atlas.

I believe Atlas would be played as a tanky Armor Stacking top laner, because of his abilities scaling off of armor, and his crowd control, and his damage reduction during crowd control. He also makes for a somewhat decent control mage, considering his W wall, and zoning with the second cast. He doesn't deal a whole lot of damage, which is also why it's recommended to play him tanky.

Skin of Stone (Passive): While under the effects of crowd control, Atlas takes 20% reduced damage. Atlas is also immune to knockbacks and knockdowns.

Landslide (Q): Charge forward, dealing 30/60/90/120/150(+20% AD)(+20% Armor) physical damage to the first champion or large monster struck (deals damage to any minions and little monsters in the way). If it hits a champion the cooldown is reduced to 4/3.5/3/2.5/2 seconds. If it hits a champion again within 3.5 seconds of it hitting another champion, it deals 10/25/40/55/70 bonus true damage. This does not stack, but can happen infinitely. (30/35/40/45/50 Mana) (10/9.5/9/8.5/8 Second Cooldown) (400/425/450/475/500 Range)

Tectonics (W): Summons a 300/350/400/450/500 units wide, lasting for 5 seconds. Activating again will cause the wall to turn into a boulder, rolling 400 units in the chosen direction from the wall, dealing 40/80/120/160/200 (+25% Armor) magic damage. (80 Mana) (26/23/20/17/14 Second Cooldown) (800 Cast Range)

Petrify (E): Enemies 40° in front of Atlas gain 8/10/12/14/16 Petrify Stacks per second. At 100 stacks, they are stunned for 2.75 seconds. Enemies have a 16/14/12/10/8 time window before they can be stunned. Enemies retain stacks for 1.75 seconds. (8/12/16/20/24 Mana per second) (0.5 Second Cooldown) (350 Range)

Rumblers (R): Summons two stone rumblers for 45 seconds. They target the same target as Atlas. Damage: 25/45/65 + (40/60/80% AD) (20/25/30% Armor) Armor: (50/75/100% Armor) Magic Resist (50/75/100% Magic Resist) Health (30/50/70% Health) They gain +6/13/20% Movement Speed when walking towards Atlas' target.

Update 1: Added Description.