What mod makes the inventory item popups when I hold shift. This one is new for me. Where Can I get info on it so I can understand what it is? Also....Mana? New to me. At least in Minecraft. Up untill now I've only played vanilla and Tekkit (Classic)
The one that shows stuff when your shift is Thumcraft and the mana system comes from Ars Magica. http://arsmagica.shoutwiki.com/wiki/Main_Page Wkii for Ars Magica http://feed-the-beast.wikia.com/wiki/Thaumcraft_3 Wiki for Thumcraft