Help with leveling up Treasure Trove

[Leopardess]

I've only been able to +22 on my Treasure Trove keyblade. Since I don't have huge amounts of money to splurge on the game, I've done the best I could with the pulls I can manage. I can't get further on the Adamantite Ore Challenge.

I would greatly appreciate any help or strategies I can use. Here is a screen capture of my TT blade. I have Alice, Namine, Belle, and others. Thanks in advance for any help.

 

[catcake]

So you need help with the Treasure Trove Adamantite quests, is that it? Which one are you stuck on?