add a labyrinth Dimension withe an endless procedurally generated labyrinth.
that contains several guards to stop you from progressing through the labyrinth.
the first guard variant is a knight which turns to stone when there's no intruders near it. it can as well put up its shield randomly while its aggroed and when it's shields up its invincible.
the next enemy is the key guardians which there's three variants of and you can summon in a random one of them at the top of the challenge towers. all the variants will have the abilities of the night and more health and their own special ability. you will have to kill one of each variants to get to the final option for now