Reworking Tyranny of Dragons 10: Oyaviggaton

When I first ran Oyaviggaton in 5th edition’s infancy, I found the dungeon a bit repetitive and unchallenging. In my opinion, a party of 8th-level heroes have well-outgrown combat encounters with kobolds, and trolls have shifted more toward minion-tier than being challenging on their own (though, it looks like now the module references the Ice…