Features:
A large 84 x 74 blocks map!
4 checkpoints - made with pressure plate, obsidian and command blocks
Reward chests - you will need to find them.
Checkpoint 1 or Spawn - a maze which you need to find the second checkpoint
Checkpoint 2 - a room with 10 mob spawners (6 zombie & 4 skeleton)
Checkpoint 3 - a huge room with LOTS of mob spawners (center has 4 charged creeper spawners!)
Checkpoint 4 - teleported from checkpoint 3 room into a small mob spawner room
Checkpoint 4 also leads from mob spawner room into a preparation room for the boss battle!
Boss battle - already has wither skeleton spawners but for more fun you can add a wither if you want!
Rules:
No cheating
No mods
Stay on Survival Mode