Any three color combination can work well depending on the precise mix of cards which show up for you
There are 34 red, 30 white, 29 green, 28 blue, and 25 black mono-coloured Planeswalkers
You want this card in your arsenal, but perhaps more importantly, if you dont have it, youre falling behind from the opening turns
For only one more mana than Remove Soul, you outright countered any creature your opponent cast, plus got to draw a card
Sure, its pretty much dead on arrival if you play it against any Steel deck on curve, but the card is also inkable, which means you can easily put it into your inkwell and focus on better threats
New black- and white-bordered cards are legal as of the Prerelease event for the corresponding set, or in the instance of supplemental products, like Commander decks on the release date