But if you enjoy the opening experience and would be happy with any SAR or SR hit, a box or two gives you a legitimate shot at something valuable
Rabbit Merlin lets you draw a card when it enters and leaves while crab Merlin gives Challenger to another character
If nothing else, it is a great bait for removal early on, allowing you to prioritize the other creature types that it can trigger with
[Darkness] Triple Poison Your opponent's Active Pokemon is now Poisoned
(Guzma, at least, gets a character arc incorporated into the show, though it is very late in the last season and he only appears in two scenes following his defeat.) Denser and Wackier: The Advanced Generation was noted for this, having far zanier plots in filler episodes, Meowth's boss fantasies becoming a Once per Episode thing, and Team Rocket's Villain Decay reaching its peak
Notably, opponents can't try to remove cards from your graveyard to change the cost of Drag to the Roots