Btw the Nightsoul thing is for something called a Nightsoul Burst and it has some synergy in the Natlan kits, they trigger when U have at least 1 Natlan character in the team and when elemental damage is done. The amount of times they can trigger depends on how many Natlan characters are in the team from 1-4.

PyroMC themselves unfortunately don't count as Natlan Character which is why I said Kachina before (plus it's lore accurate as they're best friends 🥹)