The Pokmon card Jolteon 70/236 of Cosmic Eclipse also exists in Reverse version
Despite its lack of legendary status, Arcanine boasts a valuable card that rivals some of the most expensive Fossil cards, like Dragonite
It is a hand trap that has an extremely large impact on the game, creating a Macro Cosmos state for two turns with its lingering effect, and even taking into account the disadvantages such as difficulty coexisting with other hand traps, rotting if drawn after the first turn, and having a huge impact on yourself, it is a card that "can be considered for inclusion if it's a deck that doesn't use the graveyard" and "if it can be included naturally, that alone increases deck power"
Then she comes back, and you still have six experience counters
Three different versions increasing in powerlevel, not sure which would be the most appropriate, as the effect can be strong (free discard + explore a land = rinse and repeat!)