I hate his look, especially his triple tail but let me tell you one thing above all others: He is insane in Arena. Like, really really evil. Because of his A3 and A2, all the bombs go off at the start of the character's turn. So they take massive damage before they even get to do anything. PLUS bombs do like 2x or 3x damage to Stoneskin, so it actually makes Stoneskin a penalty where he's concerned. It's a combo you can do without any books. A3 to place bombs, gets extra turn. A2 to reduce bomb cooldowns. Then everyone dies.
The other thing is his poisons (from bombs) are Protected so bosses can't remove them. Also he's good for Bommal because of how hard his bombs hit against high HP opponents, plus Bommal takes extra damage.
I haven't looked into any videos for him in awhile but the last thing I can tell you is he makes Round 1 and 2 for any dungeon a cake walk. Since the poisons always do %Max HP Dmg and he puts 4 on everyone when the bombs go off, he clears trash really well.