Anyone manage to make maul work consistently?

I've tried several times, last time with Tandis/Tinkerer, figuring it would be the best possible combination. Tandis gets 50 accuracy from his skill tree and Tinkerer would allow for best equipment and enchantments.

Didn't really work. I've stacked accuracy, got close to 200 on Tandis, but rarely it connected more than twice. In rare occasions it hit thrice, and once in a blue moon four times. Between 80% and 90% of cases, Tandis managed to hit once or twice. That would make maul ability very inconsistent and unworthy of high level it usually occupies in skill trees. Drogon 360 degrees attack worked flawlessly. You can rely on it and make it a part of your strategy. Maul was just plain underwhelming. If high accuracy Tandis can't pull it off, what hope is there for other units hero, who are usually around a 100 or so accuracy...

Is there something I'm missing or maul just plain sucks?