He seems good for an epic, although a bit one-sided. I read each ability and think it's good. But when considering the package as a whole? I just fail to see where I'd use him.
Dungeons? sure, seems ok for dragon and ice golem. Controls the waves, then has some residual utility against the boss.
Doom Tower? Well, in my limited experience the toughest floors all have block debuffs, or nasty passives you have to work around. So this guy is at best 1/2 of a control package, and we only have 5 champion slots.
Faction wars? got plenty of great barbarians, so does everyone else.
I'm wary of epic fusions. I went for Nogoryo and he's sitting in the vault. There's nothing wrong with Nogoryo, he just doesn't make the cut. And the cost in shards was pretty high (one full-sized summoning event). So I've learned to count each shard pulled outside a 2x as half a shard lost. 4 sacreds is 25% chance of a legendary on average. There needs to be something worthwhile on the other side of the equation.