﴿ مَآ أَغْنَىٰ عَنْهُم مَّا كَانُوا۟ يُمَتَّعُونَ ﴾

“of what avail to them will be all their past enjoyments?”

in what way mā here is interrogative would that enjoyment which they were given avail them? in averting the chastisement or mitigating it? It would be of no avail!