While I can definitely imagine spots where it gets maindecked, the most common use is likely as a sideboard tool for midrange and control decks
Reign of Jafar is the eighth set to the game and features several dual-ink cards and others that could easily become key components to winning with some decks
Meanwhile, for a Shift 5 character, Pluto Determined Defender is a little underwhelming, with a healing ability that isnt really all that attractive
Basically if you have a couple of two mana counterspell effects these are pretty good, if you don't have reason to keep up mana in their turn these are underwhelming
encouraging attack speeds up the game
MEET THE TEAM As I mentioned, Ive gone out of my way to play creature cards in every slot possible for my Sefris list both for the generic upsides Ive discussed before on this blog, and to make my Looter engine ultra-reliable