Dark matter?

[Randgris]

And curse spikes you can get from refining 5 (or was it 3) triface cards or mugging from trifaces, sometimes you can get it from other monsters too.
Dark Matter, a pretty hard item to get, I only have one.

Actually:
1 Tri-Face Card = 1 Curse Spike

To get the Dark Matter you need to refine 100 curse spikes using the GF Siren's Tool Refine ability. Siren has to be on level 100 for this to work. Its worth it though, the Dark Matter teaches Quistis the blue magic, Shockwave pulsar which deals one of the biggest amounts of HP damage to a target with one straight hit: 5 digits! (the others are Kamakaze and Eden's Eternal Breath) Plus it looks cool.

Not only that Dark Matter can be refined to other usable items.

GFAbil-Med Ref:
1 Dark Matter = 1 Luk-J Scroll

Tool Ref:
1 Dark Matter = 1 Shaman Stone (Which can be refined to LuvLuv G's, GF compatibility +20 all GF's, or Rosetta Stone, GF learns AbilX4 ability)

And umm... I got this info I got from a cheatcc.com:
Tool Ref:
100x Curse Spkie = 1 Dark Matter

Tool Ref:
1 Dark Matter = 1 Shaman Stone

Forbid-Med Ref:
10x Shaman Stone = Holy-War Trial

Med-Lvl Up:
10x Holy-War Trial = 1 Holy War