When you're in a dire situation, and things aren't looking good, sometimes you just need a few rounds to get everyone's health back up, and Welt can give that to you and Bailu. Instead, what Welt does is give the opportunity for Bailu to heal more. You might think that Welt slowing down enemies and delaying their turns might take away Bailu's ability to shine, but you'd be very wrong in that case. His Imaginary damage, however, is significant enough that you'd be silly not to have him as a sub-DPS on your team. By using Mark of Counter, she can continuously counterattack enemies with the help of her companion, Svarog. His own abilities and his ultimate slow down your enemies and delay their turns long enough that they may not even get the chance to take them. Clara is a Main DPS character in the team.

Related: Honkai: Star Rail - Best Enemy Designs, Ranked

As a path of Nihility's character, Welt's abilities are naturally inclined to slow down the enemy and imprison them for a turn or two. However, Welt is not supposed to play an intentionally supportive role. Welt sits in an odd area as a character because he works both as a great support and a wonderful sub-DPS character.

Clara honkai star rail team