I think Zelena has at least a hundred monkeys by now, the way she’s transforming people left and right. She has to have that many! Her “spies” keep telling her every little detail of everything that happens.
So every time a monkey gets incinerated I imagine someone rolling a hundred-sided-die (yes, those exist) and on a 1-10 a character we know gets turned to ash. That’s how I’d do it if I wrote this show. 😉