The following tool is for randomly generating gems for upgrades in your own Watchers in Death campaign.
Each model is limited to two gems per Weapon, two gems for Armour, two gems for Shields, and one Jewelery gem. Once a gem is equipped it cannot be removed without being destroyed.
...of Resist Magic (Jewelery): May ignore the effects of any spell on a 6+
...of Superior Splitting (Weapon): For every hit with this weapon roll d6 wound rolls.
Generate Another Gem
Generate Another 2 Gems
Generate Another 3 Gems
Generate Another 5 Gems
Generate Another 10 Gems