You can join Clan Centurio and enter the Clan Hall after you have completed the first Hunt in the game to defeat the Rogue Tomato. Speak to the Bangaa out front to gain access to the Clan Hall and then speak to Montblanc at the top of the stairs.
As you complete Hunts, either regular Hunts from the Notice Board or Elite Hunts provided to you by Montblanc, you will gain Clan Points and scale through the rankings.
Attaining different ranks will allow you to purchase new items at the Clan Provisioner in the Muthru Bazaar in Rabanastre. The rankings are as follows:
| Rank | Marks Killed | Montblanc’s Reward | Clan Provisioner |
|---|---|---|---|
| Moppet | - |  Potions (x3) |
 Decoy |
| Hedge Knight | 2 |  Warp Motes (x2) Teleport Stones (x2) |
Oil |
| Rear Guard | 4 |  Remedy (x3)Teleport Stones (x2) |
 Gauntlets |
| Vanguard | 8 | Hi-Potions (x3)Teleport Stones (x2) |
Drain |
| Headhunter | 10 |  Ether (x2)Teleport Stones (x2) |
 Steel Poleyns |
| Ward of Justice | 12 | X-Potions (x2)Teleport Stones (x2) |
Ether |
| Brave Companion | 14 | Hi-Ether (x2)Teleport Stones (x3) |
 Cat-ear Hood |
| Riskbreaker | 16 |  Elixirs (x2)Teleport Stones (x3) |
Bubble |
| Paragon of Justice | 24 | High Arcana (x3)Teleport Stones (x3) |
Syphon |
| High Guardian | 28 | Empyreal SoulTeleport Stones (x3) |
Winged Boots |
| Knight of the Round | 32 | Megalixir (x2)Teleport Stones (x3) |
Reverse |
| Order of Ambrosia | 45 |  Centurio Hero’s BadgeTeleport Stones (x3) |
- |
Potions can only be purchased when you are on the Moppet rank and Hi-Potions can only be purchased when you are the Hedge Knight rank. For some reason, 
Bubble Belts cannot be purchased when you jump to the Paragon of Justice rank but reappear when you are a High Guardian or Higher.
Aside from those three items, you can purchase everything listed in the ranks below the one that you currently hold.
Record Breaker
The Record Breaker Trophy is obtained once you have earned 500,000 Clan Points. You can check out how many Clan Points you have obtained by opening up the Clan Primer in the menu.
Montblanc also hands out a number of rewards for defeating mini-bosses during your travels. These rewards are listed below:
| Boss or Mini-Boss | Reward |
|---|---|
| Four Flans | 150 gil |
| Firemane | 200 gil |
| Mimic Queen | 300 gil |
| Demon Wall (optional) | 1,200 gil, Warp Mote |
| Demon Wall | 600 gil, Nugget of Electrum |
| Elder Wyrm | 800 gil |
| Tiamat | 900 gil |
| Vinuskar | 1,100 gil |
| Earth Tyrant | 1,200 gil |
| King Bomb | 1,300 gil, Mallet |
| Ahriman | 1,600 gil |
| Mandragoras | 1,600 gil |
| Rafflesia | 1,800 gil |
| Daedalus | 1,900 gil |
| Tyrant | 1,900 gil |
| Hydro | 2,000 gil |
| Humbaba Mistant | 2,100 gil |
| Fury | 2,100 gil,  Bacchus’s Wine |
| Hell Wyrm | 50,000 gil |
He also provides rewards for controlling Espers, both the optional and mandatory ones that you obtain through the story:
| Espers | Reward |
|---|---|
| 1 | Arcana (x2)Teleport Stone (x2) |
| 4 | High ArcanaTeleport Stone (x2) |
| 8 | GemsteelTeleport Stone (x2) |
| 13 | SerpentariusTeleport Stone (x2) |
