M Pokemon EX with Celebi EX Ruling

[pokemonrocks777]

Hello I'm trying to figure out a rule on Venusaur Ex/Blastoise along with the Mega Venusaur Ex/Blastoise EX and Celebi EX

Can you use Celebi EX ability time Recall to use an attack on the Pokémon EX when it is a Mega Evolution.

If it can not why not?

Thanks

 

[PokePop]

Sure it can. It's an evolution.