Killing mohg without dodging (mohg shackle) 

I managed to yeet him out of existence with the spiky spiky spinning wheel thingy

I was able to do pretty much the same thing with Marais Executioner's Sword. Its got a really good Ash of War that if you build around it, it melts bosses.

You can't stack flame grant me strength and howl of shabriri since they're both body buffs

Well played

Please tell me what’s that build

I beat him at level 100 in 3 tries without spells, incantations or buffs

Hold on. What were all the buffs you used?

Where do you get the antlers

Is it NG+?