By discarding a card, Noose Constrictor gets a +1/+1 buff until the end of the turn
Plus, if you do it every day during the trial and dont stick around, youll still end up with a bunch of extra cards
Of the 71 brand new legends in the set, 40 are mono-colored partners (plus the Piper), with the other 30 being non-Partner multicolor legends
Rakdos has a lot of good cards that could take advantage of this, though, but the biggest issue is that Crueclaw here has to get in and do damage, so thats turn 4 before you can hope to get some sort of hit
Right now, they arent a part of the stronger decks in the format, but the creatures have a lot of time left in Standard, and have a history of being very relevant competitively
And look, they gave me a Nicol Bolas type card to play with