I've just find a solution (appart from killing him and summon an other one in the overworld), you cant put a command block in the nether and type in "tp @e[type=minecraft:panda] <a player in the overworld name's>" and when you trigger it, every panda in the nether go straight to the overworld...
Swan AUVERGNE
I've just find a solution (appart from killing him and summon an other one in the overworld), you cant put a command block in the nether and type in "tp @e[type=minecraft:panda] <a player in the overworld name's>" and when you trigger it, every panda in the nether go straight to the overworld...