Heresy is such a great word
Here’s a list of all the helpful Youtube channels that pop up across the video
Green Screen Guy - Bricky
Imperial Fist vs Iron Warriors Animation - The Grape Lords
Tier List Guy - Aspex Tactics
Game Example Black - Tabletop Tactics
Game Example Purple - Tabletop Titans
The Blowgun Gameplay was me, and everything else was official Warhammer promo material (even the Astartes fan films, which were bought by GW and never finished because they’re dicks)