Jax with Essence reaver is completely busted...

First, just to show data rather than only my own experience: http://na.op.gg/champion/jax/statistics/top

Any of his core builds with essence reaver have a 65%-76% win rate.

Now on to my experience: I just got him in an ARAM. Was 5/5/7 roughly when I completely trinity force + essence reaver. Decided to try how busted it would be and went into the fight 1v5. Got a quadra kill out of it and barely lost any health. To be fair, I was against an Udyr (who can do nothing through my e), a Yasuo, a Master Yi, and an Aurelion Sol (who I focused and killed before he could stun me) and their Ornn ignored me and ran for my back line.

Jax's Q counts as an auto attack and with CDR has only a 3.6sec cooldown to begin with. Jax's W is an auto attack reset and also has a really low cooldown. On top of that, Jax gains attack speed each time he attacks.

So picture this: Engage, activate ultimate and e, Q to your target. Auto. W-auto. Release E. Auto. Oh, they flashed? Your Q is back up already because you've already refunded 3x20% of the 3.6 sec cooldown. Jump onto them. Your W is up. Your Q is up. Your W is up. Your E is up. You literally have no cooldowns, are immune to auto attacks, can leap wherever you want, and land gigantic sheen procs with W.

Later in the same game, I built a vamp sceptre (not even the finished hydra yet) and engaged at 20% health against the same A-Sol, Yi, Yasuo, Ornn, Udyr (and to be fair this time I had cc from singed and maokai to back me up) and I drain tanked the 5 of them ending the fight at about 90% health while they were all focusing me the whole time.

I don't even play Jax. I literally was just smashing my hand onto my keyboard pressing Q/W/E whenever they were up immediately - and it was trivial to just stick to anyone I wanted and deal loads of damage to them.

I feel like this needs to be fixed. Essence Reaver Jax is completely busted.