giovanni's exile pokemon card - 174/214 - Uncommon your Pokémons attacks do 20 more damage to your opponents Active Pokémon (before applying Weakness and Resistance). Pokémon TCG Giovanni's Exile 67/68

While the designers did fit enough Convoke cards to fill out a precon, and the new Convoke cards they designed for the product are all very good (Flockchaser Phantom is cracked), they were seriously reaching to fill those remaining slots and put in some real bad stinkers in there too (Chant of Vitu-Ghazi)

If your cards number goes above the number of cards in a set, technically its a secret because it goes beyond the number of cards that should be available

Enchantments are difficult to remove

13 Free day on a peaceful island

This means that 23.4% of the time (so just under one fourth of the time) you will open at least one extra rare or mythic rare in the Set Booster, and that's just from the wildcard slots

A Note on Ante Cards Ante cards are tutorable, but due to the way they function, they won't reap you any benefits, as confirmed by Mark Rosewater: Q : Can Spike, Tournament Grinder get ante cards