User blog comment:IlLusion01/Arias, the Intergalactic Warrior/@comment-6292556-20150501175436/@comment-8803317-20150502122242

His E's main purpose is to nullify his Q's mana cost, which activates his passive, allowing him to deal damage while restoring mana in most desperate situations. Another purpose of his E is to counter any marksmen if you have enough dodging skills.

About his R, Arias is a DPS mage. If he got jumped on, he cannot unleash his combo, activate Zhonya's, and then repeat. He needed an escape mechanism without being un-unique. That's why I gave him his R. He can use it to escape from assasins, and if his teamates are nearby, he can bait enemies into a death trap. Moreover, his R provides him a hard CC to counter channeling abilities like Death Lotus and Teleport.

And by the way, I had had no idea about Pit Lord and I just did some research about it. I think his old ult is like 90% of Arias', only more OP lol =))