Xeno Guardian

 is a unit. It is a strong defensive unit which provides constant attack while it blocks.

Strategy
is mainly a defensive unit, as it only produces 1 each turn while costing, making it inefficient for attack. Its merit is instead found in having at a fairly low cost, making it better suited to being the backbone of one's defense compared to both Walls and Steelsplitters since it both absorbs an additional damage each turn and attacks for 1 at the same time.

is very apt at dealing with opponents using chill in general, and Frostbites in particular, thanks to its ability to both Attack and Block at the same time (see Vigilant in the Glossary). Since Frostbite only freezes for, if the set doesn't contain more granular chill (typically Cryo Ray), it takes two Frostbites to freeze a 's , which is very inefficient. An opponent massing chill is one of the cases where going for Xeno Guardian mass production is justified.

Assuming there are no blocking, non-Fragile units with higher Health in the set, is a powerful unit and players should generally try to get at least one during the game. Buying as preventive defense to be used simply to soak damage is rather inefficient but acceptable sometimes, especially if the alternative is to waste. Then it works like an Infusion Grid and a Gauss Charge for instead of 1.

Synergy
Units that spend Energy, such as Electrovore, since rushing Xeno Guardian leaves the Engineers little defensive relevance on early turns.

Cheap or double Blue units, such as Oxide Mixer or Deadeye Operative.

Change Log

 * February 17th, 2016
 * Buildtime decreased from to.
 * Cost increased from to.
 * September 18th, 2015
 * Cost decreased from to.
 * Buildtime increased from to.