|Final Fantasy X Species Creation|
|Sensor||Immune to Sensor.|
|Common Steal||Chocobo Feather|
|Rare Steal||Chocobo Wing|
|Common Drop||Agility Sphere; Agility Sphere x2|
|Rare Drop||Dark Matter; Dark Matter x2|
|Weapon Drop||Darkstrike, Silencestrike, Sleepstrike, Poisonstrike, Stonestrike, Zombiestrike, Slowstrike|
|Armor Drop||Darkproof, Silenceproof, Sleepproof, Poisonproof, Stoneproof, Zombieproof, Slowproof|
|Abilities||Fangs of Chaos, Fangs of Hell, Fangs of Ruin|
|Resistant to||Armor Break (99), Mental Break (99), Zanmato (Lv. 4)|
|Immune to||Silence, Sleep, Darkness, Poison, Petrification, Slow, Zombie, Power Break, Magic Break, Threaten, Death, Provoke, Sensor, Scan, Gravity, Delay, Eject|
The Fenrir is a special enemy in Final Fantasy X, created in the Monster Arena when at least three of each Lupine-type fiend has been captured. Fenrir uses the same character model as the Bandersnatch. Oddly, if the player has 8,000 gil or more they can fight Fenrir for free; no matter what the result is the player won't lose any money.
Fenrir drops three or four slotted armors that will include two to four of the following attributes: Zombieproof, Slowproof, Silenceproof, Deathproof, Confuseproof, Stoneproof, Sleepproof, Poisonproof and Darkproof.
Fenrir also drops 3 - 4 slotted weapons that include 2 - 4 of the following attributes: Zombiestrike, Slowstrike, Silencestrike, Deathstrike, Stonestrike, Sleepstrike, Poisonstrike and Darkstrike. By the time the party is strong enough to defeat Fenrir, these weapons may not be terribly useful.
Like the lesser Lupines, Fenrir is fast and agile and can evade most normal attacks and Counterattacks. His three moves are all single-target: Fangs of Ruin is a normal attack for physical damage; Fangs of Chaos reduces the victim's HP by 90% and inflicts Confuse; and Fangs of Hell is an Instant Death move against both normal characters and Aeons. Fangs of Hell can be avoided with a high evasion stat or a weapon with Evade and Counter, but high luck is also needed to avoid the other two attacks. The most difficult obstacle to overcome in the battle is Fenrir's speed.
When a character has only 1 HP, Fangs of Chaos no longer does damage to him/her.
A simple way to defeat Fenrir is to Grand Summon Anima if in the player's possession, and defeat and Overkill it with a single Oblivion attack. This strategy is only viable in Final Fantasy X: International where Oblivion does 1.6 million damage.
If the player is farming for Agility Spheres, the quickest method is to use Wakka and another character, having their Celestial Weapon and preferably Auto-Haste equipped. If both of their Overdrive settings are Victor, both of their Overdrives will be over half way after the end of the battle. If the second character can give his Overdrive to Wakka with Entrust, he can then use Attack Reels. If done perfectly, Fenrir will go down in one hit provided that Wakka is strong enough.