Usually, when we first make a mechanic, we'll take a design meeting to create cards with it to try and get a sense of what can be done with it and how much design space it has
Low to the ground, aggro, Hate Bears, Recursion, Sacrifice-matters - all strike me as places to play this fun little five-cost sorcery uncommon
The deck construction and tactical gameplay will appeal to kids who already love TCGs like Pokmon or Magic, and the thriving tournament scene gives competitive players something to work toward
Response // Resurgence is the perfect split card, as neither half would be great alone, but the whole is worth playing
Each booster pack does, however, contain different cards so it's still worth checking what each one holds
However, assuming their life total is somewhat low, you are almost certainly better off focusing on burning them out and using your creatures to chump block their bigger creatures if the game turns into a race