Since https://classic.wowhead.com/item=2243/h ... rd-the-odd proc works on pretty much everything including https://classic.wowhead.com/item=6948/hearthstone and Battleground flags...
Does any1 know if it also works with https://classic.wowhead.com/item=10645/ ... -death-ray?

That would be so overpower lmao...

A level 59 twink’s dream if true.

It likely won't work since afaik it doesn't work with grenades either, so it's likely engineering items don't count as spells.