Simplify the following text for a Grade 5 native English-speaking person.
Original: A strike is an attack with an inanimate object , such as a weapon , or with a part of the human body intended to cause an effect upon an opponent or to simply cause harm to an opponent .
Simplified: A strike ( or blow ) is an attack with an inanimate object , such as a weapon , or with a part of the human body . It is intended to harm an opponent .