Holy has arrived

[FAdadadada]

@popstarfreas

Step 2 - In-progress
Add the duel mode to GameModes. This is the simplest form of this idea, which is just reuse everything from zombies, if a player types /join duel, it either puts them in a lobby waiting for 1 other person or it joins an existing one. Once both players are there they get thrown into a duel arena and then shoved back into gamemodes.

Yes, duels is still in-progress, and yes, you have to manually access it via command input:

• /join duel