Center of All
Center of All is a monster from the dNetHack variant.
': Weapon +4d6, throws cursed loadstones. Permanently invisible.
Guardian of the First Key of Neutrality, Center of All is generated randomly as part of normal monster generation, rather than in a guaranteed lair. Entering the golem level (Sum of All) in the neutral quest does, however, greatly increase the odds of Center of All appearing, so he will often appear in the neutral quest
His loadstone attack is a grave threat. Thrown loadstones deal 1d30 damage have a 1/3 chance of adding themselves to the target's inventory instead of dropping to the floor. In this way, Center of All can quickly immobilize his opponents.
Compass all the planes,
and yet you will never find
creation's heart
[ riff on a Planescape Haiku, originally by Ecco-Mono ]