Its maindeckable or sideboardable in random decks, not just Dinosaurs
Theres incentive to play battles, as winning earns you XP, which helps you level up, which helps you open more booster packs, which helps you build better decks to win more battles
These abilities can both produce a significant degree of value, as by simply casting mana rocks, removing opponents' permanents, and countering spells, you can advance your board state through the creation of Spirits
Having helped in the creation of many of the expansion sets of the time, they began talking about cards which were cut from the expansion or were unplayable, based on the rules of the game
The Fallout Path to Exile is my favorite version of that card by mile
Just be ready for when theres a card-draw punisher like Sheoldred, the Apocalypse on the other side of the table