Each slot can drop a retro frame rare (41.7%) or mythic rare (14.8%) card
With the two reversals, you return both instants to your hand and get to repeat the process
Then I actually start to get pretty excited about Teyo Jiang Yanggu, Wildcrafter enables some pretty explosive starts, the best case being: Turn 1 Llanowar Elves Turn 2 Incubation Druid, Chamber Sentry with X=1 Turn 3 Jiang Yanggu, -1, counter on Incubation Druid At this point you have five additional mana to spend on Turn 3
Again, this is a purely casual card, but its one that Ive found trades pretty well
Chosen for its high-risk, high-pressure aura effect, capable of punishing opponents when placed on resilient or evasive threats