Quake Bolts

When you give a model this Relic, select one bolt weapon that model is equipped with. When that model is chosen to shoot with, you can choose for that weapon to fire a quake bolt. If you do, you can only make one attack with that weapon, but if a hit is scored, the target unit is felled until the end of the turn in addition to any normal damage. Each time a melee attack is made against a unit that is felled, add 1 to that attack's hit roll.