What do I need to get the ultima weapon in kingdom hearts 2 final mix?

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I am asking for a list of ingredients for the ultima weapon

 

[Absent]

First you need the recipe. Also you need an Energy Crystal.


13 (7) Orichalcum+
1 Orichalcum
1 Mythril Crystal
1 Dense Crystal
1 Twilight Crystal
7 Serenity Crystal

Also Google is your best friend.

 

[AHHHHHHHHHHHHHHHHHHHHHHHH]

O yeah I forgot