I was in a game with viccc25 and they had Sorin, Imperious Bloodlord (Planeswalker) in play and used his -3 ability to put High-Society Hunter in play - it was the ONLY creature on my opponent's battlefield. I destroyed the High Society Hunter, and after it hit the graveyard, it's second ability proc'd - "Whenever another nontoken creature dies, draw a card."

This should NOT have happened! The High-Society Hunter was the only creature on the battlefield. It's ability CLEARLY states that it's ability to draw a card happens whenever another non-token creature dies. It should not have proc'd on itself.

Since this same issue was posted back in June 2025, then I can only assume that my opponent was taking advantage of a known bug.