You also have Budding Expeditioner there to help if you need to pull your Mew ex back into your hand and out of danger
Even in its cheapest form, the Shanks card will still cost at least $8
The event text specifies: One of the following cards, chosen randomly, will be included in the promo packs you can obtain from this event This seems to indicate that with each pack you open there's a 1/5 chance you'll get any of these cards
These cards often have unique abilities or effects
If you're getting a Digimon card this way, you can also determine the level of the result by the levels of the cards you input: Rookie + Rookie = Rookie Rookie + Champion = Champion Rookie + Ultimate = Champion Champion + Champion = Champion Champion + Ultimate = Champion Ultimate + Ultimate = Ultimate If you fuse a Digimon and an Option, the level of the result depends on what Option card you input, and I don't really know how the game determines it, but you'll always know what card you're getting in the third Fusion Shop anyways
The checker is best used for fast market-aware research before you trade, buy, sell, or add cards to your collection