How to Reach the Elite 4 and Champion in the League Building

Getting to the End

The League Building spawns in the End dimension, so you must first reach the End by activating an End Portal with Eyes of Ender. Once in the End, you can either defeat the Ender Dragon to access the outer islands via gateway portals, or build out to the outer islands manually. The League Building generates somewhere among these End islands, so bring plenty of blocks for bridging and an Elytra if available.

Facing the Elite 4 and Champion

Inside the League Building you will find the four Elite 4 members and the Champion from Radical Cobblemon Trainers. You generally must defeat each Elite 4 member in sequence before the Champion will battle you. Prepare a high-level, well-balanced Cobblemon team with type coverage, since these are among the toughest trainers in the mod. Stock up on healing items and revives before entering. Because the mod is in beta, the League Building may sometimes generate partially or the trainers may not trigger correctly; if this happens, note the coordinates and try reloading. Defeating the Champion completes the main trainer progression for Kanto. Always back up your world before attempting this challenge.