Jirachi

Jirachi is the mascot for the Zeta version of the game. It is a steel/psychic type and known as the Wish Pokémon.

There a special version of Jirachi know as Delta Jirachi that is exclusive to these games. A Jirachi can be changed into it's Delta version in the Delta Temple.

Pokédex Entry
"Jirachi is said to make wishes come true. When it sleeps, a tough crystalline shell envelops the body to protect it from enemies."

In-Game Acquisition
You encounter it at level 50 after defeating Odin on Mt. Press as part of the main story line. In Pokémon Omicron your rival Jake will catch Jirachi.

Move Set
Double-Edge

Gravity

Healing Wish

Zen Headbutt