Sandy failed to work in one of my duos games.
Marin’s treasure box. Teammate had pagles.
I was running two sandies, team mate had a mechagnome with 3k stats. Sandy failed to trigger. Golding sandy seemed to fix it.
I had the minor trinket to spawn copy of my team mate’s highest health minion that was functioning.
The sandies were triggering with all of this, but stopped once the stats on the unit grew too high.