Three Avataras For Three Asuras

“There are instances in history of many asuras - Ravana, Kamsa, Hiranyakashipu - to whom the Lord appeared in various incarnations just to kill. Therefore God's mercy is shown to the asuras if they are fortunate enough to be killed by Him.” (Shrila Prabhupada, Bhagavad-gita, 16.20 Purport)