Blocker

Blockers, represented by the icon, are units that can add their current health to a player's defense for each turn. Note that blockers cannot do this when they use their ability during a turn. This often requires making tradeoffs between inflicting attack and maintaining adequate defense.

Blockers that are prompt can add defense value during the same turn they are purchased due to their zero build time. Blockers with Lifespan are vulnerable in certain situations.