I'm thinking of an ironknuckle boss about as tall as Ganondorf was in TP (much taller than Link). He uses an axe the size of king bulblins's but he isn't slow with it and it does a lot more damage. Also, the only strategy for beating him is using your sword and dodging his axe with rolls, backflips and sidesteps. when his armor is gone, he'll be a lot faster.

But what to call him?