Complex sentence: To do this, he or she is the first to attack an enemy, may have powers or skills designed to draw the enemy's attention and has a high amount of defense and health to survive constant attacks of mobs.
Split into simpler sentences: To do this, the tank is typically the first to attack an enemy, and may have powers or skills designed to draw the enemy's attention. The tank has a high amount of defense and health to survive constant attacks of mobs.