These issues are out in the open now due to the difficulty level and mob damage of mistlands. You can't be wasting attacks on 2 star seekers but at the same time their attacks are registering on you just fine. This a big no-no. Vertical combat needs to be fixed ASAP, I'd say it should be their number 1 priority for the next update

The best part is that some weapons do in fact have vertical attacks (black metal axe special attack and sword third attack for example) and those attacks still will not hit the enemy if the ground isn't flat as a grandma's ass