The boss is a combination of its smaller brethren and the Grey Big X Walker. It drops a ball which will burst into flames like the Magician's Super Volcano 4. The ball is more lethal for the touch than the Grey Big X Walker's, and the flames last much longer, so it is ill-advised for characters to stand/walk below it. It also drops the balls quicker than the Grey Big X Walker, so that melee characters will barely avoid its attack while they attack it. Characters with high range like Snipers will ensure no harm. However, the boss is strong against every type except Physical attacks, so Physical Bows/ranged weapons will aid in the battle. A Knockback's Card might be a viable compo item for some ranged characters to keep the boss from getting in range to attack. The bait strategy is somewhat effective, but be prepared to move characters, as the boss will occasionally make sudden movements to the left or right, which can cause more harm than good. The Sniper's Nonuple Arrow 4 with a Bullet's Card 4 and a Guide's Card is a great weapon to use against this boss, especially from a far enough range.
Alternatively, if no character is in possession of a Physical type weapon, a Freeze type weapon will also work on the boss, since it only omits the freeze time, but not the damage out of it. Magicians are a major example, since only their starting weapon is their only Physical one. The Big Icicle 4 or the Freeze Explosion 6 will allow the Magician to become much more suitable against this boss.