Players have to fight up to two of them during The Elder Kiln, to protect Ga'al-Jeh. The hardened TzHaar-Ket will first fight each other, during this time it's recommended to leave them alone. The victor would then attack Ga'al-Jeh directly, and the player should attack it to get their attention, but they will not initiate combat with players on their own. Another TzHaar-Ket (Hardened) is defeated by the Ga'al-Xox, after the latter is infused with the Ket-Yit'tal's TokKul.