Sinspawn Echuilles

Sinspawn Echuilles is a boss in Final Fantasy X, fought underwater by Tidus and Wakka after the attack on the S.S. Liki by Sin. It is flanked by several Sinscales which are replaced whenever thay are dispatched. While the sinscales do most of the physical attacking, Euchilles will often use Drain Touch on one character, which can be negated by using Wakka's Dark Attack. It's other attack is Blender which hits both party members for substantial damage. Making good use of Tidus' Cheer ability will raise his and Wakka's strength and defence enough to reduce the need to use lots of potions.