Samsara (Zen in Grand Chase PH) is the boss of the Temple of Cuatal (Temple of Origins in Grand Chase PH). He is the biggest boss in Grand Chase so far.
Samsara is a god of the Xenia Continent, residing in the Temple of Cuatal, and has been taken control of by an unknown force, presumably the Ascendant God, and attacks Grand Chase. Once he is freed, he tells them of a war and claims he has been protecting the outside from the fringes of the war.
Due to Samsara's size, he is not affected by any status changes, like freezing and petrify, and cannot be knocked back or knocked down. If the player is in front of Samsara near his upper body, he may attempt to punch them, or if they are near his lower body, he will attempt to kick them, both sending the player to the other side of the room. He can also do a jump attack, in which he targets a player, and if hit, the player can take a large amount of damage, but can be avoided through the use of a skill, Arme's dash, and Sword Master's or Nova's shadowstep. Another attack Samsara has is a series of blue projectiles that shoot out in numerous directions, but requires a couple seconds of charging. This move can be reflected with the Sylph mirror of Warlock, and cannot kill a player. Samsara also has two Danger moves. One of them covers almost the whole stage in front of him, and the other is a giant pillar of fire that turns the middle of the stage a danger zone for a couple seconds.
Samsara's appearance changes to reflect the health he has lost (removal of mask, appearance of golden emblem).
Trivia
A small meme revolves around Samsara's pre-boss fight dialogue and the "This is Sparta!" scene in 300 because of their similarity.