Here’s a way to use the outrageously powerful spell Ultima a total of five times in a single turn. The character attempting this must have access to the following. First, he or she must know Soul of Thamasa (found in the tower where only magic and items can be used), as well as the spell Quick (learned from the Gilgamesh magicite) and Ultima (learned from the Ragnarok magicite). Select the Dualcast option, and use Ultima and Quick. Quick will give you the option to cast again in the same turn. Execute the same commands, and Ultima will be cast a total of five times in a single turn.

Additionally, you can use the same combo but substitute the second command sequence to use Reraise and Osmose, ensuring that you won’t lose and ensuring your MP consumption won’t take your MP total.