The reason why it’s not viable is that he can’t keep 15 furies for all the fights. First you will have to build up the furies, so 3 fights at 5 / 10 / 15 furies, then you have at most 3 fight left before you loose all furies
@TKal hit it right on the head. Sabretooth definitely has the damage potential, but the fact that he loses all his stored up fury after his persistent charges drop to 0 means that you will have to rebuild them up again in multiple fights, which will take a long time.
Also, he's not just a masochism/iceman counter. If you know how to use him he's one of the hardest hitters in the game
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The reason why it’s not viable is that he can’t keep 15 furies for all the fights. First you will have to build up the furies, so 3 fights at 5 / 10 / 15 furies, then you have at most 3 fight left before you loose all furies
Also, he's not just a masochism/iceman counter. If you know how to use him he's one of the hardest hitters in the game