Any idea

just a glitch in the matrix.

You took the blue pill.

You used remote viewing on a gym that was under attack. It is a bug, if that is not obvious.

It's Tyrael trying to cross franchises

Trainer used Outrage

Trainer inadvertently stepped on a ball containing a Zapdos.

That's sasuke using raikiri :)

A Legendary Pokemon, Zapdos, is about to appear!