When your best chance is The Arena, you learn to fight pretty quick.

When a spell goes wrong, the mane six are sent to earth.

A human appears in equestria, only to find that he can absorb magic and use it because he has none of his own.

A human travels to equestria and finds out why the ponies are so little.

Aaron gets taken to ponyville overnight, and deciedes to set off to explore equestria