World of Final Fantasy/Chapter 10: Too Warm a Welcome

Coliseum
A new challenge is now available

The Rainbow Shore
Once you make landfall, Rikku and Adamantoise part ways from you, although Rikku asks Adamantoise if she can stay with him a bit longer. They sail away as Lann promises to imprism him one day. Save for one chest, this area is pretty empty, so grab it and head to the next area.

The Dragon Scars
This area is basically a straight shot from start to finish, however there are several flutter points along the way for chests, as well as a mandatory fork to the right on the third area, forcing you to fight Cerberus, the first mini-boss. Cerberus is imprismable, however it will likely take many tries. Additionally, you can only meet its condition once per prismtunity, and maxes at the second level, so meeting it again will not increase your success rate. Luckily, with over 13000 health, and a 25% resistance to the elements needed, you will get several opportunities before it dies. The biggest danger is it killing you while you spam imprism on it, due to it countering with a physical attack each time it breaks out. Beating it or imprisming it, however, will grant 25800 XP, as well as granting you either your first XL Mirage, or access to your first XL Mirage. As the help bubble that pops up after the fight informs you, Cerberus is different from regular Mirages, in that it is too big to fit into a stack, as well as too powerful to be freely controlled the way your other Mirages are. Instead, it acts more as a summon, or as an extra health pool if worst comes to worst. Summoning XL Mirages requires both twins to be alive, and has stats and skills separate from your stacks. Additionally, rather than giving you a game over, it disappears if it runs out of HP. Each turn it is out uses up AP, and you cannot use items while it is active, however at higher levels it has monstrous stats, more than you will be able to attain with stacks, acting as a handy tool for boss fights.

Another thing to note is that, due to not fitting in stacks, XL Mirages will only get 8% XP from battles, unless you transfigure them into a smaller form for grinding. They also tend to have admittedly small Mirage Boards, relying on skills and boosts from other forms in their family to really excel.

Near the end of the area you will see a pair of red feathery wings and a Save Crystal. The upcoming boss fight will either be extremely easy or extremely difficult. Trying to build a stack to cover its weaknesses will make you weak to it, ironically, and making yourself resistant to it will leave you unlikely to be able to deal much in terms of weakness, unless you have some Blizzard or Water Mirajewels. A Red Dragon has 100% resistance to Fire, so you could possibly transfigure a Spark Dragon, Holy Dragon, or Sky Dragon into one, giving both stacks full immunity to its most powerful attack. You're still stretched pretty thin on your options to fill the Small slot, but one handy option is to catch a Quacho from the Coliseum, and transfigure a Quachacho from Icicle Ridge into a second one, giving you access to Watera on both stacks without losing your Fire immunity. Water is the weaker choice of the two weaknesses, but currently it's likely your best shot. Sadly, even a Watera likely won't do much more damage than a Blizzard, despite costing almost twice as much, so you might be more inclined to just fill in any other Mirages with non-negative Fire resistance and go with a set of Blizzard or Blizzara Mirajewels instead, in which case you may want to go with two Fritt, giving you Fire absorption, healing you whenever the boss uses Flare Star+ or Blaze. However you wish to tackle this, just make sure you can handle incredibly powerful Fire attacks.

After the fight, a second dragon attempts a sneak attack on Lann, only to be punched into the atmosphere by a girl in a cowboy hat. She seems shocked that it actually worked... but what would have happened if it didn't? As you follow her to the next area, the Masked Woman appears to convene with the Plumed Knight, and they discuss that the Azure Prophecy is coming true, deciding that they must then fulfill the Crimson Prophecy swiftly, possibly in response, possibly as prevention.