These are the rewards that you can obtain by capturing fiends for the Monster Arena. Refer to the Monster Arena page for additional information about this massive side quest:
There are several rewards that you can unlock at the Monster Arena, most notably by unlocking certain fiends of particular species types or that all come from the same location. There are a few one-off unlocks, though, which are also mentioned below. You can unlock the following three one-off items:
Nirvana
Re-open the Monster Arena by capturing one of each fiend that you can find in the Calm Lands. Note that you will need to have the Celestial Mirror in your possession to unlock and open the treasure chest (otherwise, it will just sit there).
Blossom Crown
Capture one of each of the fiends that you can find in Mt. Gagazet.
Mars Sigil
Unlock 10 Area Conquest or Species Conquest monsters. This can be any combination of Area/Species conquests.
The rewards you can receive for completing Area Conquests, Species Conquests, or Original Monsters are located below:
Area Conquest
| Area | Fiend Unlocked | Reward |
|---|---|---|
| Besaid | Stratoavis |  Stamina Tonic (x99) |
| Kilika | Malboro Menace |  Poison Fang (x99) |
| Mi’ihen Highroad | Kottos | Soul Spring (x99) |
| Mushroom Rock Road | Coeurlregina | Candle of Life (x99) |
| Djose Highroad | Jormungand | Petrify Grenade (x99) |
| Thunder Plains | Cactuar King | Chocobo Wing (x99) |
| Macalania Woods | Espada | Shining Gem (x60) |
| Bikanel | Abyss Worm | Shadow Gem (x99) |
| Calm Lands | Chimerageist | Farplane Wind (x60) |
| Cavern of the Stolen Fayth | Don Tonberry | Silver Hourglass (x40) |
| Mt. Gagazet | Catoblepas | Blossom Crown |
| Inside Sin | Abaddon | Lunar Curtain (x99) |
| Omega Ruins | Vorban | Designer Wallet (x60) |
Species Conquest
| Species | Fiend Unlocked | Reward |
|---|---|---|
| Wolves/Lupine | Fenrir | Chocobo Feather (x99) |
| Reptiles | Ornitholestes | Stamina Spring (x99) |
| Birds | Pteryx |  Mega Phoenix (x99) |
| Wasps | Hornet | Mana Tonic (x60) |
| Imps | Vidatu | Mana Spring (x99) |
| Eyes/Bats | One-Eye | Stamina Tablet (x60) |
| Flans | Jumbo Flan | Twin Stars (x60) |
| Elements | Nega Element | Star Curtain (x99) |
| Helm/Armored | Tanket | Gold Hourglass (x99) |
| Drakes | Fafnir | Purifying Salt (x99) |
| Fungii | Sleep Sprout | Healing Spring (x99) |
| Bombs | Bomb King |  Turbo Ether (x60) |
| Ruminants | Juggernaut | Light Curtain (x99) |
| Iron Giants | Ironclad | Mana Tablet (x60) |
Original
| Requirement | Fiend Unlocked | Reward |
|---|---|---|
| 2 Area Conquest | Earth Eater | Three Stars (x60) |
| 2 Species Conquest | Greater Sphere | Supreme Gem (x60) |
| 6 Area Conquest | Catastrophe | Door to Tomorrow (x99) |
| 6 Species Conquest | Th’uban | Gambler’s Spirit (x99) |
| 1 of each fiend (all) | Neslug | Winning Formula (x99) |
| 5 of each fiend (all) | Ultima Buster | Dark Matter (x99) |
| 2 underwater fiends (Mt. Gagazet) |
Shinryu |  Megalixirs (x30) |
| 10 of every fiend | Nemesis |  Master Sphere (x10) |