If you do, you get to pick one of three things to do
The token itself isn't anything special, just a 3/3 Serpent token with no abilities
So a Selesnya card can have a green half and a white half, which is obviously better in Selesnya decks
Aetheroworks Marvel: Compare with Quicksilver Amulet , a 4 drop rare artifact (Pay 4, tap, You may put a creature card from your hand onto the battlefield.) Here you have to pick from the top six cards of your library
Coastal Piracies These three entries get lumped together for obvious reasons
The likes of one of the best Grass-type cards in Pokemon TCG Pocket , Celebi EX, are worth building entire decks around due to their high damage potential in one turn