It's not a one-to-one transformation, too, as there seems to be a third eye-socket with a red orb within that's neither man nor serpent
You normally get about one to two white cards per booster pack , depending on the sets color distribution
This Pikachu looks he wants to be picked up
During the Main or Battle Phase, if this card has a counter(s) on it: You can send this card to the GY, then make your opponent discard as many cards as possible, up to the number of counters that were on this card.
Looking for a hydra to build around, or some good beefy creatures to include in your decks
Still, there are plenty of important things to remove at the three-CMC or lower range