Judith, Carnage Connoisseur provides homes and unique applications of burn spells in a similar way to Taii Wakeen , except instead of turning a Blazing Volley into card draw, Judith's keyword granting ability turns it into Damnation with an added life-gain rider
This allows you to sacrifice the Messenger as many times as youd like, and because it makes your opponent lose 2 life every time it comes back, this also means it can kill all of your opponents if you get it in the right loop
In Commander there are literally thousands of creatures of every different power and toughness and ability or effects you can imagine
Shadow clearly has a ton of potential, and I think it goes beyond regular, casual Commander
Archaeomancer's Map is Burgeoning-lite that draws two lands on ETB, Its highly effective as a white card, since white doesnt have as many options for ramp effects