When one of your units causes a unit to be discarded, attach this Trait to that unit of yours.
Equipped unit gets Fury 3 and "Whenever this unit attacks and does no damage (after damage prevention), put 1 damage counter on it."
Keywords
Fury
Fury X: A cumulative ability triggered by the initial dice roll that means, "When you roll at least one natural four with this unit's attack dice before re-roll, roll X additional attack dice." Only the first natural "4" counts. A four rolled after re-roll doesn't matter. If your unit gets the Fury ability after you roll attack dice, it's too late to roll additional attack dice. Fury applies only to dice rolled for an attack, not to dice rolls for abilities like Retaliate. Accuracy can't increase the die roll to a natural "4."