Which is a greater genjutsu? Also consider their side effects. KA can only done once n afta dat it can't b done 4 anoda 10 yrs. Izanagi on d other hand can only b done 4 d briefest of moments afta dat the user's eye bcomes blind orever. As 4 e I say Kota Amatsuami cos it is more of an attack n can b used 2 finish d enemy whereas Izanagi is defensive n can't kill d enemy.