Mostly need Agility, Wisdom, Defense.
I would accept other res as well if you would rather.
Have the following mercs to offer:
Crdnl Marksman v2
Crdnl Marksman v2
Crdnl Marksman v3
Crdnl Scout Cdr
Cardinal A.I. V2
Crdnl Scout Cdr
Skrillez
Grandmaster Fii
Grandmaster Fu
Grandmaster Fii v2
Ceaser
Mutt Patriarch v2
Neophyte
Night Blades
Night Blades
Night Blades v2
Ironsight, Gunsmith v2
Ironsight, Warlord
Whip Junker Female
Scrapzilla
CXB-0 "The Ashmaker"
Tendril Whip Combatant v2 (4441 wis)
Tendril Whip Combatant v2 (4342 wis)
I also have some resources I could trade, mostly PS - I'm not sure about the going rate to trade PS for Crystals though (10:1 maybe?).