Weaknesses? Cons?

[Celest]

I always wondered because It proved to be a exhausting task trying to rush down Tager w/ my Ragna & keep up the pressure w/o getting caught up by his commands grabs when I reset. Another thing that irritates me about Tager is his "Genesic Emerald Tager Buster" & getting caught in it almost all the time because a friend found out he can never catch me w/ Magna Tech Wheel>Terra Break. I just need the weaknesses to Tager because only way I can even the playing field is Throw Escaping (15/100 Chance) or using Hakumen (Regular/UNL)