What is Buddhism's view on curse? I have read various mythological and histories about curse where it has destroyed kingdoms and kings. Does curse have that power? If so, how it can be explained in relation to karma? What is Buddhism's view on curse?
The Buddha quite clearly implies that an "act of hate" (i.e, a curse) can destroy forests. It is of course a matter of opinion whether the Buddha "really" believed this, or was simply using it as a didactic device - but that is what the text says. See the Upali Sutta (MN 56).