Seeing 'reigned in' or 'during his short but happy rein...' makes me feel like putting a slight distort on the width of the byline mugshot.
I've yet to see 'rain of terror', however.
Rain falls out of the sky. It can be a verb or a noun.
Rein is what you drive a horse with. If your sentence is about a. horses; or b. giving or taking away freedom, use this word. It can be a verb or a noun.
Reign is what kings and queens do. If your sentence is about someone who is in charge, use this word. It can be a verb or a noun.
That particular editor's reign of terror was marked by a full fortnight of rain and only ended when head office decided to rein him in.
Rein is what you drive a horse with. If your sentence is about a. horses; or b. giving or taking away freedom, use this word. It can be a verb or a noun.
Reign is what kings and queens do. If your sentence is about someone who is in charge, use this word. It can be a verb or a noun.
That particular editor's reign of terror was marked by a full fortnight of rain and only ended when head office decided to rein him in.
Sky falling water rain is the one that has a visual rhyme with pain.
A king's reign is connected with the word 'regal' which means fit for royalty, or dignified. Knowing this might help stick that vital 'g' in your memory.
And the one left over is a horse rein. Reinforce this idea by picturing it in use on a reindeer.