I must say, I freaking love this champ concept, the lore is very interesting, and he reminds me of a sort of "Armored Core" type mecha.

I'd say you have a very solid champion overall, and would love to see a champion similar to him implemented at some later date.

Good Work ^_^

Bumpin'

Bumpin'

Bumpin'

The major problem I have with his passive is that he can BLOCK other CC. With his model being bigger, and with benefits from other champs or items, The enemy(Or your) Team could stand behind him while he rolls forward and takes the hit from everything dangerous. Sure, Amumu and Malphite and Ali will still do their area stuns--but they are perma-banned for a reason.

I'm with the others that says that immunity to those CCs is too powerful, but I will throw out something else.

How about he is effected by slows, snares and roots, but slows he only takes part of the effectiveness from it and snares and roots he is just slowed by them? Like if he is hit by Dark Binding or something he isn't rooted, but slowed by 15%. 15% isn't much, but it could turn the tide a bit while still not breaking him. The maximum amount he could be slowed could be 15% from all sources and slows down stack on him. I like the no knockups and knockbacks and the rest of this idea. Its really cool and I bet some people would find it alot of fun to play.

I like the missle spam ult. I had something like that in one of my old concepts, but it was like a carpet bombing than a bunch of targetted missles. My old one built up charges and it increased the damage and area covered the more charges you had, yours seems alot more refined.

Overall I really like this champion, a giant hulking metal monster that knows how to take a hit would be nice to see.

I LOVE THIS CHAMPION IDEA.

However, the concept is one of those that would be extremely difficult to balance. Passively immune to snares and slows is ridiculously powerful; I'd honestly say a 50% reduction in duration that stacks with Tenacity would be better in my opinion. He's still capable of blocking CC for your team, since he'd be reducing the duration of all snares and slows to 32.5% of their original duration. Morgana snares you? At max level that's less than 1 second of being snared. It's still extremely powerful without rendering entire champions and their CC completely useless passively. Olaf only gets his for a short duration and only when he spends mana on it, and only after level 6.

That said, as he stands right now, he could additionally be balanced by increasing the cooldown and cost of his Q. Blitzcrank's grab, an equally powerful initiation tool, costs 110 mana and has the same cooldowns as Arcanis' Q, which costs considerably less.

Also, as a nit-picking thing, Malphite's Ultimate is already called Unstoppable Force. Just FYI.

Also, while his ult looks really interesting, I'm not really sure how it's intended to work. How do you imagine it working in your mind?