The remaining cards in the series each represent some aspect of the RPG experience: The Monster Cards represent the player's party members
Survival of the Fittest does the work of two or more cards in its own little combo, and it only requires 3 mana to get going
In that first set, he was objectively the most powerful, with both the highest HP (a Pokmons health gauge, if you will) and the strongest attack
For example, Delver of Secrets has a triggered ability occurring when you reveal an instant or sorcery from the top of your library while Bloodline Keeper has an activated ability with a cost to transform it (in this case, paying a black mana)
It was clear and obvious in the context of each individual game why Jace was so powerful but it was less clear to me why this was a general case
TCG requires Duelists to have strong math skills and develop complex strategies in order to succeed