Maybe someday we will have a full Flotsam/Jetsam deck that can run all these cards together and always be getting some benefit off of it
I personally love the idea of structuring their rules like planeswalkers enough so that if you understood that card type it would be easier to learn how these played too in blocking, attacking, and in how they could lose counters
When you can pack a load of narrow tools into your sideboard and have access to them game one without any risk of drawing them and having dead cards Living Wish is a little oppressive and outclasses Demonic Tutor
They show up in the Aether Revolt ones, but for a few months there nobody had a specially labeled token to denote their current energy count
The face commander, Kotis, Sibsig Champion, also has potential as an infinite-sized beater with the right recursive loops in motion
If you are running a very aggressive, burn heavy and low to the ground goblins list then Zo-Zu is quite good