I'm thinking about things like Witch Bolt spell or Rune Knight's fire rune. Both require attack rolls thus have the ability to crit, but also have a feature that can continue damage over time. So if the initial damage crits does the subsequent damage continue to crit or not?
Witch Bolt only deals additional damage on the initial hit. That applies to both critical hits, and also upcasting the spell... so upcasting only increased damage of the initial hit and it's still just 1d12 each round after.
Fire Rune is the same way... the additional damage in future rounds is separate from the actual attack.
I'm thinking about things like Witch Bolt spell or Rune Knight's fire rune. Both require attack rolls thus have the ability to crit, but also have a feature that can continue damage over time. So if the initial damage crits does the subsequent damage continue to crit or not?
The crit only affects the initial damage.
Witch Bolt only deals additional damage on the initial hit. That applies to both critical hits, and also upcasting the spell... so upcasting only increased damage of the initial hit and it's still just 1d12 each round after.
Fire Rune is the same way... the additional damage in future rounds is separate from the actual attack.
Watch Crits for Breakfast, an adults-only RP-Heavy Roll20 Livestream at twitch.tv/afterdisbooty
And now you too can play with the amazing art and assets we use in Roll20 for our campaign at Hazel's Emporium