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 Speed (Weapon): Every unmodified hit roll of 6 allows the bearer to make one extra attack with the same weapon. These attacks can NOT generate more attacks.
...of Protection (Shield): Reroll failed saving throws of 1 and 2.
...of Resistance (Jewelery): Ignore wounds (not mortal wounds) on a 6+.
...of Health (Armour): +1 Wound
Generate Another Gem
Generate Another 2 Gems
Generate Another 3 Gems
Generate Another 5 Gems
Generate Another 10 Gems