You don’t really need any gear but you kind of have to play solo to minimize variables / avoid people killing everything. But some are doable even in normal runs (especially if you can record a video).
Basically for animations and cooldowns, you have to record a video so you can easily time and repeat as necessary (some are quite subtle). Attacking the enemy may hide animations which makes soloing better.
For damage taken you only have to get hit. But you have to be able to write it down somewhere until you forget it (can be hard during a run, recording helps), especially if you have vulnerability. Then you have to put the number to a spreadsheet to scale it to a “general value” (requires your armor and current wvw defense).
For enemy armor you need to remove any variables (no vulnerability, no random traits, etc) and hit enemy multiple times with a same attack. Then put min and max damage along with other data to see enemy armor. Not very doable with a party unless they let you hit it for a minute.
However, if you know any armor values (like from gw2dungeons) you can use AoE/cleave attack to hit multiple enemies. And then use damage difference to convert known armor value to the unknown armor value. May need to add your critical damage if one of the hits is a critical.
Potion is same quite simple. Just keep track of min and max and see whether they change. However, this isn’t needed that much. Again not very doable in a party.
Health is really simple but you need to use frifox’s tool (which is not 100% allowed).
But thing is, if I have a few people try it and get like total of 10 values it’s not really worth of it (time help setting up and helping people > time spent getting those values).
