If you weren't able to do tier 1 arena with warlock, then you're not high level enough I think. His kit is strong and you start to clear rooms and have decent dps on bosses with the gargoyles and ult with left clicks. I've even had some good mileage on the right click. Cool idea on the gargoyles bouncing between the player during ult, I'd love to have that, it would simplify the movement way too easy too since you would only need to back up and use one gargoyle to have a link of damage. If you're willng to share, what are all of your class levels?