Its an older piece, from Boundaries Crossed, but the eye-catching artwork and interesting ability have helped to keep it at the front of the communitys collective mind
You can read about the Johto League on the Johto legend
Product Details Adds 3 mana of any single color of your choice to your mana pool, then is discarded
Suddenly, a board state that required 50 1/1s to attack a player for lethal damage might only require 20 or 30, putting a second or even third player in the crosshairs of the oncoming onslaught
The set was intended to be used as in introduction to the Pokemon Trading Card Game and was designed to be two decks of 30 cards
Additionally, mono-color archetypes like Elves or Merfolk decks don't need fetchlands, so players on a tight budget might want to consider these decks instead