Losing a hard-earned energy at any point in the game is devastating
This is a decently sized creature with flash, and you can cast it for free while fulfilling all the roles you want from this effect
The Galarian Gallery cards featured extended-art illustrations that placed Pokemon in richly detailed, atmospheric environments rather than the standard isolated battle-pose compositions, and the Mewtwo VSTAR was one of the most impressive entries in the entire subset
This sounds like a downside, but pair it with cards that have their damage scale equal to the damage counters on them, like Scream Tail, and you can prime them up to deal more damage
Phoenix Whirlwind , known as Wheel of Fortune and later Volcanic Wheel of Fortune in the Japanese version, is Jack Atlas' Duel Runner
Tough to get rid of without exiling it, and tough to block it thanks to its size, Darksteel Colossus is also easy to tutor and cheat out thanks to being an artifact