Alternatively, you can bring back Rebecca as a blocker, who will then play Spandine, setting up Rob Lucci from the trash
That said, your success with a given deck comes down to how its constructed and how you play it
And the phenomenon repeats on a more modest scale with modern expansions: Celebrations, Evolving Skies, and Crown Zenith follow a similar curve, with returns ranging from 80% to over 1,700% over 3 to 5 years depending on the product and its desirability
Those versions are worth a cool $140, with the promos all fetching several hundred each
Since Grolnok allows exiled spells and lands with croak counters to be played, it can offer incredible card advantage , provided you have a fighting force of Frogs ready to attack each turn