Drat. Dat does dampen da deleterious devices devised. I think that the wish is corrupt enough as is that I can't do anything more to make it more corrupt.
I wish for a handy dandy dictionary for the sleep-deprived!
genial: amiable, friendly, genuinely kind
deleterious: harmful
"devices" in this context means "tricks or other dastardly plots"
dastardly is like the adjective that describes you when you're being something that rhymes with this word that I can't say here