Sinspawn Genais

Sinspawn Genais is the final Sinspawn encounterd in Final Fantasy X. It is fought during the direct confrontation with Sin, alongside Sin's Core. Any magic that is directed at the Core will be absorbed by Genais, so it is important to dispose of it first.

Unlike the similar-looking Geneaux, Genais begins the battle outside his shell and the full brunt of physical attacks as well as lots of Fire can be used to weaken it. Genais will use poison-based attacks and counter any magic with Waterga. Once it's HP drops past 50%, it will retreat into the shell and begin casting Cure on itself as a counter to any attacks. This can be prevented by silencing it. While Genais is inside it's shell, the Core will charge and unleash the powerful Gravija, which is very harmful to the entire party. Summoning an Aeon and using it's Shield ability will negate most of the damage.