On the evening of June 4, I set out on a mission to lose a match with Jordan’s RCDC Momo deck. Five hours later, after the dust settled, I was 21-3 in matches on MTG Arena!
21-3 Deck
Jordan Selesnick’s (and 21-3 on MTG Arena) mainboard can be seen below as a screenshot from MTG Arena:

Jordan Selesnick and (21-3 on MTG Arena) mainboard can be seen below as a text export from MTG Arena:
4 Momo, Friendly Flier
4 Quantum Riddler
4 Sage of the Skies
4 Starfield Shepherd
3 Haliya, Guided by Light
2 Cosmogrand Zenith
2 Nurturing Pixie
1 Aang, Swift Savior
1 Flitterwing Nuisance
4 Springleaf Drum
2 Parting Gust
4 Daydream
2 Practiced Offense
2 Seam Rip
7 Plains
4 Floodfarm Verge
4 Hallowed Fountain
4 Multiversal Passage
2 Abandoned Air Temple
21-3 MTG Arena Screenshots
In this first match, I had 2 bad draws. I won anyway vs. a very competitive deck in Mardu that had Academic, CBR etc:

Second match, vs. Orzhoz, 2-0. Here’s their graveyard:

This Momo deck is the dumbest deck (in a good way!) I’ve seen in a while. Subtleties too, although I’m sad Pixie cant pick up Nuisance. I wonder if another Practiced Offense is better than a 3rd Haliya?
Dropped a game to this cool deck (Howling Mine on a stick, that pings with Ugin and friends):

Dropped a game here too (still hard to lose a match!):

At this points I was 19-1. A few matches later, I retired for the evening with a 21-3 record!
Adam was right when he recommended I play without a sideboard to complete the mission! Also, besides the Riddlers (uggh) this deck is pretty inexpensive to build on paper. MTG Goldfish currently has the price at $372.72.
21-3 MTG Arena Run and Jordan Selesnick Winning RCDC 2026 With Azorius Momo
This 21-3 Arena run showed how strong Selesnick’s RCDC 2026 deck can be on Arena, but the original breakthrough came from Jordan Selesnick’s championship performance at RCDC 2026. For the full tournament context, matchups against Prowess and MGL, top 8 results, and metagame breakdown, read the full recap here: Jordan Selesnick Wins RCDC 2026! Dismantles Prowess and MGL!.