As long as you regularly connect with your opponents, you can run it as a self-sustaining engine
Copy Cat - The Many Ways Mewtwo Struck Back - This old fan site, a relic of a more personal internet, is a brief summary of various different releases of Pokmon: The First Movie
Let's look at a few discard spells and rank their fun, shall we
Dunsparce takes 20 additional damage from Fighting-type attacks
Crew 2 Artifact - Vehicle Swashbuckler's Whip Equipped creature has reach, ", : Tap target artifact or creature," and ", : Discover 10." (Exile cards from the top of your library until you exile a nonland card with mana value 10 or less
Additionally, the attack name on the card art features a unique gradient as opposed to the fixed red-to-yellow that has been used on all other Mega cards previously, and the evolution box as well as the top of the card seem to have rock encrusting them making it seem like they've been excavated