Evrae Evrae is a boss in " Final Fantasy X " , fought by Yuna ' s guardians on the deck of the " Fahrenheit " prior to their arrival into Bevelle . Known as Bevelle ' s guardian wyrm , Evrae is possibly one of the toughest storyline bosses in the game , due to the mechanics of battle aboard the airship and the absence of Yuna and her healing and summoning abilities . After its defeat , Evrae falls from the skies , seemingly beaten . It reappears in the underwater sewers of the Via Purifico as Evrae Altana , a Zombie version fought by Tidus , Wakka , and Rikku . Battle . During the battle , Cid appears on the turn list and supports the party in play by controlling the " Fahrenheit " . Tidus and Rikku have access to a Trigger Command that will prompt Cid to move the ship either closer to , or further away from Evrae on his next turn . While close , Evrae has access to the dangerous melee attack , Stone Gaze , which deals light damage and petrification and , after inhaling , can perform the powerful Poison Breath attack , which damages the whole party and inflicts Poison . Evrae ' s Stone Gaze inflicts not only Petrify , but also Slow . While the Petrify is subject to normal mechanics , the Slow bypasses protections , even the full immunity granted by Slowproof or Ribbon . It can still be prevented with SOS Haste or Auto - Haste . While the " Fahrenheit " is far away , only magic , Lancet , Wakka ' s physical attacks and the Mix Overdrive can hit Evrae , but Poison Breath will miss and Evrae will only use the weak Photon Spray attack ; furthermore , on his turn , Cid will use the ship ' s mighty Guided Missiles attack to deal massive damage , although this can only be performed three times over the course of the battle . After some time Evrae will use Swooping Scythe , a relatively weak attack on the whole party that brings Evrae into the closer state and breaks petrified characters , removing them from battle . Once Evrae ' s HP drops below 10 , 667 ( 1 / 3 max HP ) it will cast Haste , allowing it to close the distance between itself and the party at a faster rate before following up with Poison Breath . Unlike other bosses in the game , Evrae can be inflicted with Slow , which allows Cid to have more turns in comparison to Evrae . However , once it casts Haste on itself , it becomes more difficult to cast Slow , and will make Evrae use Haste on its next turn if Slow is successful . It is dangerous to inflict Delay because it will use Haste on its next turn . Strategy . A recommended strategy is to have Rikku start off with the Mix Mighty G / Super Mighty G , to bestow Haste , Regen and other helpful statuses on the party . Wakka will probably be one of the most useful characters . Lulu is good to chip away at Evrae ' s HP with Black Magic , but the player might want to have Tidus out to repeatedly use Cheer to boost Wakka ' s attack . Another good strategy is to stay as far away as possible and use up all of Cid ' s missiles . In this strategy it is best to not attack with Wakka while awaiting the salvo , as Evrae may counter with Swooping Scythe . One of the more simpler strategies is to cast Reflect on Evrae , preventing it from hasting itself . Rikku can get to it easily with a Lv . 2 Key Sphere . When the party is close to Evrae it will charge up Poison Breath , so by moving away after it inhales will render it useless , and use up one of its turns . If the party does get hit by Poison Breath or Petrifying Stare , using Al Bhed Potions , Antidotes or Remedies cures it . They will most likely take away the Mighty G buffs , but the player can fill Rikku ' s Overdrive up again and reuse Super Mighty G . If Evrae ' s HP falls below 3 / 4 , and it looks like the party will fall , the player can use Kimahri ' s Self - Destruct as a last resort . Other appearances . " Final Fantasy Record Keeper " . Evrae appears as an enemy during the Marriage of Convenience , Into the Bevelle Palace Event . It is fought at Airship , Part 3 . Given the target ' s resistance to basic elements , it is recommended to not attach any fire , ice , or thunder magic . He frequently uses the Photon Spray attack along with possible petrification from Stone Gaze , Poison Breath , and heavy damage from melee strikes . The player can use Break abilities to soften him up , then attack with melee strikes of his own coupled with non - elemental magic attacks . White Mage characters may wish to attach Esuna to counter status effects .