Nadir

As the Apprentice, your first mission is to kill a necromancer mob from the Iron's Spells and Spellbooks mod.
Then, you are asked to kill the Dead King boss from the same mod and to obtain its staff.(The modpack makes it a garrantied drop when it is your first time.)
After that, as you play with the staff, an event will happen, asking you to kill a warden while holding the staff.(Pickup the staff four times to trigger the event.) After killing the warden, you are rewarded powerful items.

As the Blacksmith, your task is to craft a weapon from the Celestisynth mod. After doing so you are rewarded powerful items.

As the Engineer, your task is to attack a mob while holding an Extendo-grip from the Create mod with a knockback 3 weapon. To make this weapon, I recommend you use the Ponder feature on the Enchanting Guide from CEI. After doing so you are rewarded powerful items.

As the Hermit, your task is to defeat three bosses, one from L_Ender'Cataclysm, one from Mowzie's mobs (excluding the Sculptist) and one of two, whether it is the Ender-Dragon or the Wither. After doing so you are rewarded powerful items.

As the Savior, your task is to defeat Ignis from L_Ender'Cataclysm. After doing so you are rewarded powerful items.