IS TWO HANDED TEMPLAR BUILD EFFECTIVE SLAYING DRAGON?

[夜に駆ける]

so , i've been searching for a Two-handed warrior build. I already tried the Reaver build it is good at slaying dragons in the game nightmare difficulty. I was wondering if this build is any good. cut it short. I started new playthrough this build "templar avenger" by A Kis Herceg https://www.youtube.com/watch?v=G4vgl3hYvaM&t=580s so far so good. it is a decent against most mobs but tried it on dragon from hinterlands area and it seems any combo in this build doesn't really work. so Is it effective slaying dragon? for me no. really appreciate if any of you guys can recommend a templar build that have any decent damage to dragons.