Jo is one of only three cards in the entire game capable of giving cards in our hand cycling, so well take the other one thats available to our deck
Rocksteady, Mutant Maruader and Leatherhead, Iron Gator, for instance, can both dish out tons of +1/+1 counters
Creatures your opponents control can be the targets of spells and abilities as though they didn't have hexproof
Having protection from white is pretty valuable right now due to cards like Azorius Charm, Detention Sphere, Chained the Rocks, and more
Making small creatures unblockable not only allows Yuriko to connect without resistance, but ensures that youll be able to maximize her Commander Ninjutsu ability
Source: u/IamMandrell's thread on Reddit To the left, you can see how , , and got the most trophies, which is consistent with them being both the most popular 2-color archetypes, and among the heavy-hitters