A Thousand-Year Slumber - Catching Jirachi in Pokemon Go

Dubbed the Wish Maker, Jirachi is a Steel and Psychic Type Mythical Pokemon, and it's obtainable in Pokemon Go via the A Thousand-Year Slumber Special Research line. Originating in the Hoenn region, this is a Pokemon frequently associated with the Stars, and is among the more popular Mythical Pokemon in the series as a whole.

This research line unlocks after reaching Step 6 in the A Ripple in Time Research Line.

Honestly, the requirements for the individual steps aren't extremely hard, with the primary exceptions of the standard Gold Hoenn Medal at step 2, and possibly the requirement to evolve a Feebas at the same step. Those aside, the requirement of catching 3 Whismer at step 2, winning 7 times in the Go Battle League at step 5 and needing to spin Pokestops or Gyms for 7 days at step 6 can be annoying depending on your situation.

Regardless, this isn't a terribly research line comparatively speaking.