Ms. RadioBuild and Guide

Ms. Radio is one of the two 2-star arcanists currently in the game, and both of them have a similar mechanic of finding use when they die. You can, for the most part, ignore Ms. Radio’s skills; all they do is damage, and as a 2-star character, her damage won’t age very well as you progress throughout the game. Take a look at her Insight 1 passive, and more importantly, her ultimate, “A Bit of Truth Unveiled.” It’s a mass attack that causes enemies to lose 4 Moxie and provides 2 rounds of [Disconcert] to all enemies, which means they cannot gain Moxie. She will then die from this ultimate, and her passive of making them lose 1 more Moxie will activate.

She can pretty much stifle the opponent’s attacks with this completely, and works very much like the opposite version of Door. Door gains Moxie for your team, and Ms. Radio deletes the enemy’s Moxie. If you want to prevent her from dying and reuse the effects potentially, you can have Necrologist on the team to prevent lethal damage from her ultimate. However, it doesn't work as well as with Door, because Door can cycle his own ultimate, whereas Ms. Radio would probably be less useful once kept alive. It's for the most part, more beneficial to let her die, so a Substitute character can come in. So I recommend using Ms. Radio only one time in a battle, rather than keeping her alive with Necrologist.