Talk:Raid:X2/@comment-166.137.139.48-20151112185755/@comment-26424404-20151115170721

You get Obsidian Quartz from RC4 X2 Mission 7 "Uprising", which is only obtainable once and Void Chunk from RC4 X2 mission 9 "Exodus" against Centurion, which is a drop item and is needed for all SBS/Athensphere spheres.