Did a 100k will of the thousands strike using an Austringer, misfit, 21% and the full opulent scholar set. But when the nightfall ended I did not get the triumph for the high roller tribute dropping.
You have to wear the full Menagerie armor and weapon set. I put on full opulent set + austringer, epicurean, fixed odds and I got the triumph. Didn't work when I didn't put on full armor and weapon set.