Like its fellow Helm monsters, Tanket is encased in a harder-than-steel shell, meaning weapons without the Piercing ability will do little damage. Although it may appear slow, Tanket has a couple of nasty tricks. His normal attack inflicts Berserk and Delay (strong) on its victim. If only one party member is alive, Tanket will attack them continuously without giving the player a turn until they have been defeated.
Its special Rush Attack inflicts the same, but also cause Tanket's Agility to increase, meaning it will receive more turns. It is inadvisable to use any aeons other than the Magus Sisters.
Tanket drops weapons with Strength +% abilities and armor with Defense +% abilities, Strength +20% and Defense +20% being fixed abilities.