Quote Originally Posted by Levian
The person you use it on has to already know 6 other limits before you can use the 4th level limit break.

kk, Looky here:

Cloud needs to know all these before you can use the item Omnislash on him:
LV1.0 Braver
LV1.2 Cross-Slash
LV2.0 Blade Beam
LV2.1 Climhazzard
LV3.0 Meteorain
LV3.1 Finishing Touch

To gain Blade Beam and Meteorain or any other first limit within a limit level(the ones ending in .0), you have to kill a certain amount of enemies. (around 60 to 80 depending on which character you are using)

To gain Cross-Slash, Climhazzard and Finishing Touch, you need to use their respective first limit break within their level an amount of times. (Use Braver 8 times to get Cross-Slash, use Meteorain 6 times to get Finishing Touch and so on.)

got 6 limit breaks? Then you can use the item and get your 7th. Only exception to this is Vincent, who only has 4 limit breaks. If there's any part you don't understand, just tell me and I'll try to explain better.
I have all 7 levels, for cloud and tifa. i also have their limit break items. omnislash and final heaven. i try to use them, and they say that they won't take them. that's my problem