booster box of worldwake [2010] A Mythic rare will appear in the rare slot in approximately 1 in every 8 booster packs Worldwake - Booster Pack

Terrarion does keep up with the others in usefulness as it is able to double fix and is a great tool when you have things like Baleful Strix, Thopter Foundry and Tempered Steel to play

Clemont, the Electric-type Gym Leader from Pokemon X and Y, brings Kalos nostalgia to the set with artwork that captures his inventor personality and quirky charm

At the beginning of each players upkeep, that player sacrifices a permanent for each soot counter on Nightmare Factory

Prowess of the Fair Elf decks can use Prowess of the Fair as a form of insurance against removal, plus it adds an elf permanent to the board for payoffs like Priest of Titania

You can also attack with a bunch of stuff

This card was later released as part of the Celestial Storm deck and depicts Rayquaza raging in rainbow colors, likely gearing up for its Stormy Winds attack