We don’t know what exactly happened here, but Swanko11 shared a short clip on Reddit with their character hitting Uber Lilith for billions of damage and we’re talking about nearly every hit doing a ton of damage, not just one lucky crit.
Who likes high numbers?
by u/Swanko11 in diablo4
In the Reddit thread, many players are asking what build the player is using. The OP jokingly said they “broke something“, but this is most likely a build utilizing 
Caged Heart of The Barber.
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by u/Stinkfart12 from discussion Who likes high numbers?
in diablo4
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by u/GloomyWorker3973 from discussion Who likes high numbers?
in diablo4