pokemon mega evolution tcg booster box ME Enhanced Pokémon Mega Evolution—Chaos Rising Pokémon TCG: Mega Evolution Booster

That said, there are some minor interactions to be aware of

Invasion of Arcavios Invasion of Arcavios Battle Siege (As a Siege enters, choose an opponent to protect it

While it is usually more efficient to make the opponent draw a new hand with cards like Iono and Unfair Stamp to disrupt them, other cards care about the specific types of cards in the opponent's hand, and Whimsicott ex is one of these unique options

Enchantments - 5

Am I the only one who feel like all the megas we've seen so far are super underpowered in comparison to the regular exs???

It's the only time it'll be printed, and it's a card that will likely never see its restrictions loosened up because it's simply far too good for formats to handle.