Was I suppose to go to wings of vibora after every 100% exploration or can I go after fully exploring a few maps and she will give me exp cards for each map?
You can bulk turn in the 100% (There’s even an option at the top of her dialog that allows you to turn them all in at the same time), it’s encouraged.
Yep, and there’s more than one type of stamina crystal in the game’s bestiary. The stamina crystals are considered “Plant” enemies, so go check yourself. From what I understand, the first acheivement for them starts at around 800 kills or so? I think?