The Argons are a group of bosses that appeared on Slender Fortress.


The Argons are a race that appeared in Arborea many years ago. None of the races, neither the Humans, Castanics, Aman, Popori, Baraka, nor the High Elves were able to repel the Argons single-handedly. To rid the world of this evil, the six races of Arborea formed the Valkyon Federation. Humans, the founding race of the Federation, acted as the means to rally the other five races, and bound them together into a force able to meet this threat.

In Slender FortressEdit

There are 6 types of Argons:

Trivia Edit

  • The Argons were removed along with many other TERA bosses in 2015.

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