Chaos Bolt saves the party

Our party's wild magic Sorcerer had an incredible series of rolls last night that I felt was worth sharing--

*Warning! Minor spoilers for Curse of Strahd!*

Our party has been battling the various evils of Barovia for the better part of a year and have repeatedly almost TPK-ed due to our unique strategy of treating the entire place as an extended spring break. Tactics? Strategy? Never heard of them, let's just get drunk and rush in. What's the worst that can happen?

So, after rolling up to a certain windmill after having barely escaped with our lives several days prior, we very quickly found ourselves in over our head. With three PCs down or incapacitated, only our Sorcerer remained. She twin spelled a chaos Bolt at one of the Hags and triggered a wild magic surge-- and rolled a 69 (nice), which on her custom surge table meant the spell would do max damage. She then managed to roll it so that it bounced 5 additional times and crit 3. Ended up doing over 100 damage to each Hag when all was said and done. One of the sickest combos I've seen play out in several years of playing. Felt I had to share.

What's your party's most unexpected and epic victory?