destroyer (n.)

• animal
• annihilator
• anthropophagite
• arsonist
• bane
• barbarian
• battleship
• battlewagon
• beast
• bomber
• brute
• burner
• can
• cannibal
• despoiler
• destruction
• dynamiter
• exterminator
• hun
• hyena
• iconoclast
• man-eater
• nihilist
• ruin
• ruination
• ruiner
• savage
• shark
• syndicalist
• terrorist
• tiger
• undoing
• vandal
• wrecker