Cluster isn't wearing that breastplate just for looks. His grenades are a closer-range projectile weapon that releases additional explosive over a large area.
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About This Page
This page is dedicated to the Boom Beach: Frontlines Cluster card. Here you can find all the stats, unlock requirements, and upgrade requirements for Cluster. You can press on the - or + buttons, or drag the slider, to adjust the level of the card to view the stats for that specific level.
Cluster is a troop, is able to be drawn starting at headquarters level 19, and is common quality, starting at level 1.