Why bother with flight if you can just stomp them into the ground with powerful jumps? IIRC, Battle Jump from Unapproachable East considers you as charging when you fall on someone, meaning you can turn that humanoid between your shoulder and the ground into a nasty stain with your Dungeoncrashing.

Hrm, I wonder if you can beg your DM into letting you use Improved Toughness instead of Toughness.