Why Hybrid?
I've been using rylais alot, and have been wondering why i still do no deeps. Then it came to me: rumble isn't meant to tank as he never really gets focused. So then i started building hybrid. guinsoos proved just as bad as rylais, however trinity and gunblade stood out to me. As you can see in the build, you get tons of slows and movespeed, meaning you don't need to be afraid of shielding, ghosting, and getting up in there. I also understand trinity gives mana, but that really shouldn't stop you anyways.

Other Notes
I realize this isn't an excessive guide, but I'll edit it later. but for now

Feel free to change my build around. I use movespeed quints myself, but most people don't really have them so I guess health might be more conventional.
Please don't downvote until you've tried it. I'm currently trying to get to 1800 with it, like sorakabot did with AD eve when people thought it sucked.
BV is a good sub for GA or FoN, but most people wouldn't use it because it gives mana.
Also you may wanna change ghost for flash, because you cant really chase someone with an innate blink. If you think you have enough slows, you can swap exhaust for ignite.
glhf