Baldur's Gate 3 Githyanki in one Turn Patch 7

Created this a month ago but did not upload for reason.
Thanks to Sin Tee for suggestion.
A video showing what if Fighter gets critical hits. If not then check my previous video.
Strategy description:
Fighter has great weapon master feat with following buffs :
1. Mystra's blessing, comes from staff so anyone can cast it. Gain 1d4 bonus to attack rolls & saving throws.
2. Enlarge gives 1d4 bonus Damage.
3. Shadowheart will be ready to cast 'invoke duplicity' which gives advantage if both player & NPC are in 3 meter radius.
4.Wyvern poison is must. LOL
5. Bliss spores give +1d6 to attack rolls. Strength potion gives +2.