Can I use Mr. Mime's "Trick" Attack to move a Team Flare Tool card from a Pokemon-EX to a non EX Pokemon?
Yes, and it would immediately go to its owner's discard pile.
Trick




x2
-20
TrickMove a Pokémon Tool card attached to 1 of either player's Pokémon to another of that player's Pokémon that doesn't already have a Pokémon Tool attached to it. If there is no Pokémon to move the Pokémon Tool card to, this attack does nothing.

Lock UpThe Defending Pokémon can't retreat during your opponent's next turn.
Can I use Mr. Mime's "Trick" Attack to move a Team Flare Tool card from a Pokemon-EX to a non EX Pokemon?
Yes, and it would immediately go to its owner's discard pile.