Is this logic?

[Hyper-boi 123 14]

Ok someone plz tell me this.....why can’t Twilight just blast the evil pony/probably a pig/Pokémon out of  existence ??? Like she was thrown into a mountain...AND LIVED! And she has the power to just wipe the floor with tempest 

[Sun Princess Celestia 184]

15 minutes ago, Hyper-boi 123 said:

Ok someone plz tell me this.....why can’t Twilight just blast the evil pony/probably a pig/Pokémon out of  existence ??? Like she was thrown into a mountain...AND LIVED! And she has the power to just wipe the floor with tempest 

That was when we had given Princess Twilight all of our Alicorn Magic so her feats were quite remarkable, but she had returned them by the conclusion of her final confrontation with Tirek. 

[Hyper-boi 123 14]

Hmm....so what about her being a alcorn? Would she not have some magic to help her out?

[Hyper-boi 123 14]

And plus I know you’re a really good teacher so she must have something

[Midnight Solace 5,129]

I thought the Storm King drained all of magic. If you are talking about before that, I don't know why. Maybe the show wanted to pose the Tempest as a real threat by making Twilight not being able to shoot magic at stuff. 

The movie would be like, 20% cooler if there was a fight scene between Twilight and Tempest.