Looking at several Let's Plays of Regrowth,I've noticed something...
Does no one know of TCon's Heart Containers? There's three levels,each stacking to ten,meaning you can have 80 maximum health (two per heart,four sets of ten),permanently. Throw on an Absorption Potion,and a Notch Apple,and you're looking at an absolutely phenomenal volume of health. I've yet to fight the Gaea Guardian,and I'm sitting on ten Red Canisters,ten Yellow Canisters,and one Green Canister.
Let's Players,Direwolf in particular,agonize over having little health to fight these juggernauts with,and end up tripping over their own fingers trying to manage their buff potions in the middle of a fight with the Gaia Guardian II. The belt from TCon is also a wonderful little tool.
Also,much more on-topic; I'm stonewalled on scanning. All I've managed to scan is a frickin' torch. Is there a checklist around for Thaumcraft scanning?