Frogs (Blue-Green) Frogs like to jump, so it takes advantage of effects that either bounce it (returning it to the hand) or flickering it (putting it in exile and then bringing it back)
Many of these promos are designed with multiplayer formats in mind, offering versatile mechanics that celebrate the source material
The real juice here is Zimones counter-doubling ability, however
So, there may be a few spinoffs that didnt make the chopping block, but the vast majority of games in the series will be getting some love
The number of time counters is checked at the time the ability resolves
Basically the way it works, as is printed on the card, is that you can cast it when you declare your attackers, turn your attacking creatures face-down and then shuffle them around