Alchemy/Engineering a good profession combo for a Prot Warrior?

[Loadsamonie 0]

Line of thinking would be to use Engineering for grenades for AoE and threat, and Alchemy would give me Mixology for better potions/elixirs. I would farm mats on an alt that I'd level alongside the Prot Warrior simultaneously.

 

Or is Herbalism better on a Warrior for the Lifeblood skill, to help with healing in combat?

Edited April 5, 2020 by Loadsamonie

[Loadsamonie 0]

Can a Prot Warrior aiming to tank for raids get by without Engineering? More specifically, can they get by without needing grenades for AoE aggro? 

 

Pretty much dead set on Herbalism and Alchemy on my Femtaur Warrior.