I remember ages and ages and ages ago when FFVII was the latest installment to the FF series, someone started a rumour that Cloud had a Level 4-2 limit break called "Cherry Blossom". Rumours have a tendancy of being completely wrong and this isn't an exception.

And Masamunemaster, if you're talking about the attack Cloud uses on Sephiroth right at the end in which he uses all 6 of his swords in a super limit, it's generally agreed that that attack is just a slight variant of Omnislash. Speaking realistically though, the move doesn't have an official name. It also doesn't look that cool.