What makes her stand out is her Ready ability, allowing you to Ready her whenever you heal one of your Characters
Because Suncleanser says "target opponent" rather than "target player," it doesn't actually hate on Infect, and while it can remove random Arcbound Ravager counters, reset a Kitchen Finks, and keep cards like Tireless Tracker or Champion of the Parish from growing, this likely isn't enough to make room for Suncleanser in Modern sideboards
Probably not unless ninjas come back, unfortunately
Like any format in Magic: The Gathering, Commander has cards that reign supreme in popularity and power, especially when it comes to the commanders themselves
Now we know how terrible that would be
In your pregame conversation, you can ask what bracket people's decks are