Use this map if you are speedrunning Spellbound caves in version 1.8 or later. Changes:

-Used OldWorldFix to fix broken chests. -Used MCEdit to fix portal blocks in overworld and nether. -Preloaded chunks to reduce lag (flew around in spectator mode to preserve original spawner delays, and reset daylight cycle). Note: nether is NOT preloaded. -Spawn on ground instead of 1 block in air (means you don't have to wait to fall before 1st input on every attempt)