Three sounded like a good number I thought
While not typically a starter Pokmon or a primary character in the narrative arcs, Leafeon's ability to blend into varied team compositions, thanks to its robust defense and access to moves like Leaf Blade and Synthesis, makes it a favorite among players who appreciate strategy and style
In Pokemon (cards or video game), it is pure strategy by playing the right cards
Beyond that there is how immediate the life gain is, how much you get or can potentially get, how cheap the card or effect is and how hard it is to disrupt
Three mana is a lot less than four in my aggressive white decks, and the body is big enough to outsize the other aggressive decks and rumble with beefy Green creatures
However, Normal Energy Cards only work as Normal Energy you cant use a Normal Energy to power a move that requires one Fire Energy