Your wild abandon makes combats more hazardous for everybody. You may roll an extra die for damage with personal attacks that deal dice of damage, but suffer the lower die as damage to yourself as well if the lowest die is odd. This damage cannot be reduced or mitigated by alien abilities or armor but can be lucked, rerolled due to Hardened or healed as normal.

Note that this applies only once per attack so a Voltrex or multi-weapon shot would add one die once not to each shot.