So my idea is maybe every 3 times you do one of the quests in Necro 4 it offers you ALL 3 SIGILS that can drop from that quest on quest turn in.
I am at -80% XP on Inferno and still have yet to get the Right Frame Piece.
Other option would be on the 3rd turn in it offers the "exclusive" sigil piece from that particular quest. Since if you do them (all of the quest in necro 4) you will most likely get all of the random pieces.
Anyway...what do you fellow gamers think about this idea?