War of the Spark Mythic Edition product shot
In Unstable we had the card Earl of Squirrels, which had the Squirrellink keyword to make Squirrel tokens whenever it dealt damage to a player, and the artifact Steel Squirrel, while Unsanctioned had the Half-Squirrel, Half- augmented creature, Snickering Squirrel, and the squirrel Commander Acornelia, Fashionable Filcher who made acorn counters whenever a card you cast had a squirrel in the art
One booster pack was given out with every Happy Meal purchase, and there was a 5-set limit per customer
Whenever a creature you control deals combat damage to a player, draw a card
You can name it with Herald's Horn or Cavern of Souls
That said, the whole ethos of Star Trek seems kind of antithetical to a combat-based TCG