Well, it's already established that Mibu clan is feared warriors as they defended village once from a shinobi attack. Unleashing full their red eye bloodline in battle to extend it send a downright frightening war stories to other shinobi villages not to mess with the village.<br/><br/>Considering my char is using Hiten Mitsurugi Ryu style, which is kind of ace style in the clan which is practiced by few, should give idea what sort level swordcraft Mibu clan has.<br/><br/>True, they may not be ninjutsu or genjutsu experts but their strongest point is taijutsu which they have harnessed and developed since beginning of first shinobi war. As said the Mibu clan key sword attacks (which are iconic to them) are ironic ninjutsu based and so cannot be used while they have red eyes active. As said before it would be nice if Muryou Saikyou Ryuu: Rekka Koha would be taijutsu style (it is even my taijutsu list as I thinked long time it was taijutsu based as it made sense). If it would be taijutsu then Tashi could use it now in his 5th level as genius nin.