If you are building a Charizard deck, then pick the Charizard starter set to receive an additional Charmander during the first Wonder Pick
Celebrate three decades of Pokmon with the Pokmon TCG: 30th Celebration Mini Tin Umbreon
For just three mana, one of each of the Bant colors, Morska comes down quickly, potentially as early as your second turn, and at the top of each of your turns you investigate, giving you a Clue token which you can use to draw a card in exchange for two mana
Each round, the active player takes one card from the top of their pile, allowing their active Pokemon to attack their opponent's active pokmon
The owners of those cards shuffle them into their libraries
There is absolutely no downside to doing so