If your Elephant get bad skills, you can go again to Shakatu, you have to di it with the same Char, you just need 20Million gold and no Villa registration.
And you also need 10 Contrubution Points for a large garden.
Check his Quests:
http://bdocodex.com/jp/npc/45120/1/
If you go to him, get all seals from all Quests, it will be RNG which quest you get.