Despite the name, the Four Kings fight can produce more or in rare cases less than Four Kings. This is due to the nature that the boss fight itself is one health bar shared between however many kings required to empty it, with a new king spawning every minute there is less than four. Because of this spawning, if a player kills three kings and fails to kill the fourth fast enough, three more kings can eventually spawn with full health on the individual monsters, but no additional health added to the total health bar. The health also seems to increase when Phantoms are summoned to assist the player.

On the flip side, under the right conditions there can be as little as ONE king spawned that still results in victory for the player. Kings cannot INDIVIDUALLY be damaged when performing their Lifedrain grab, but attacking a king in the middle of the animation does damage to the total Kings lifebar. They are still able to be damaged during their death animation as well, and with enough players and the proper buffs, this makes killing less than four of the Kings possible.