I noticed alot or uproar in the community about how expensive it is to farm for Naxx, Greater Shadow Protection Potions can go for 70-100g a stack on my server. I knew there would be a economical inflation because this is end game content and people are gonna suck the gold off your toons with the Auction house
Level 3 herb alts preferably over 50 for aggro radius reduction (best if stealthy or hunter for feint death), get to 160 Herb skill because this is required for cultivation of Fadeleaf in SM, this will allow you to pass 240+ herbalism with multiple resets
UPDATE: In case your a mage you can blink between packs in Library or AoE kill them depending on your gear setup. Can blink away from the Armory door guards leading to the courtyard. I’ve done this on my 60 mage
Farm all of SM even Cath because liferoot can be valuable for normal Nature Protect Potion’s. You get x2 Fadeleaf nodes, x0-3 Gravemoss nodes (RNG is a mother because you could get x3 Kings blood in one GY run). x2 Liferoot (1 in Cath 1 in Library if you are level 60 to kill Hound master), x2 Goldthorn
Reset when you have done the entire set of SM, don’t forget each instance of SM is connected on one lockout
Do this enough on all your alts until you have enough to make Shadow Oil, go farm Dream foil or trade extra Shadow Oil for Dream foil
This will save you hundreds if not thousands of gold a week alone
There is pros and cons but the pros do outweigh the cons largely. Biggest factor here is that it will take alot of time away from having fun on your toons to supply readiness for raid content and you will get bored with repetitive content in a short amount of time