Boost an ally by 5.
- Note: For accurate card stats, see infobox to the right; the one below is for illustrative purposes only.
- Gwent Update: Dec 19, 2017 Patch: Ability rework; Boost an ally by 5. Renamed Crewmen ability to Crew.
- Gwent Update: Oct 31, 2017 Patch: Added Crewmen ability.
- Gwent Update: Sep 29, 2017 Patch: Now Agile (was Siege).
- Gwent Update: Aug 29, 2017 Patch: Combat Engineer Power changed from 2 to 6. General change; Units with Resilience now have their Boosted Power reset when carried over to next round. Clarified the tooltip to specifically state that the ability affects Bronzes or Silvers. Added Support Tag.
- Gwent Update: May 24, 2017 Patch: Combat Engineer Power changed from 4 to 2. Now able to Toggle Resilience of both players' units. Now Rare (was Common).
- Gwent Update: Feb 6, 2017 Patch: Added.