Map made for vesion 1.13.1, might work on 1.13+
This CTM map will challenge your ability, although it is not very long.

Welcome to "The last chunk", in this short map, which was made in 3 days, You will fight against a lot of custom mobs, defeat fun bosses, and find secret items and places.

This map features:

-15+ custom items

-7 custom mobs and 2 bosses in the same lair!

-6 floors made in a 4-chunk area

-3 difficulties with different effects

-2 challenges to improve in CTM maps!

-10~ minutes of playtrough with only 3 objectives: survive, complete the monument, and challenging yourself!

Note: This is my first ever CTM map, so I would appreciate feedback to make more maps like this one!