Pentadrones were shaped like a five-pointed clockwork starfish with one eye on each appendage, on top of five strong mechanical legs, and a tube protruding from the center of the star. They were capable of performing five simultaneous tasks at a time.
Like all modrons, pentadrones had an absolute sense of hierarchy and order, and could not be persuaded to disobey their instructions or betray their purpose in any way.
It was possible, however, for a defective pentadrone to go rogue and start acting in its own interests or no longer in accordance with its instructions, sometimes even becoming violent. Such rogues were relentlessly hunted by other modrons, although, unlike their properly operating fellows, they could be reasoned with.
Instead of using weapons like other modrons, pentadrones favored unarmed combat. They were capable of performing five attacks at a time. They also possessed a breath weapon in the form of a paralyzing gas. If destroyed, a pentadrone disintegrated completely into dust and a quadrone was instantly upgraded into a pentadrone to fill its position.
Like all modrons, pentadrones were immune to all effects and spells that influenced the mind, fear and attacks that rely on energy from either the Negative or Positive energy planes. They also had a resistance to acid, cold and fire. Pentadrones were able to release a gas that paralyzed creatures in the immediate area, and they could use this gas to levitate.
Pentadrones could communicate with other pentadrones and with quadrones. They were also capable of communicating with decatons, but were incapable of communicating directly with lesser modrons and could not comprehend any of the more advanced hierarch modrons, such as nonatons.
Around −346 DR Netherese archmage and explorer Lady Polaris came upon Mechanus and the modrons. She summoned several pentadrones into her treasure house, which were forced to act as unwitting guards until the Fall of Netheril.
There was approximately five hundred thousand pentadrones in modron society.
Pentadrones were hardy creatures, able to function in temperatures from 210 ℉ (99 ℃) to −100 ℉ (−73 ℃).
- ↑ 1.0 1.1 David "Zeb" Cook (1994). Planescape Campaign Setting, Monstrous Supplement. Edited by David Wise. (TSR, Inc), pp. 16–20. ISBN 978-1560768340.
- ↑ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 Wizards RPG Team (2014). Monster Manual 5th edition. (Wizards of the Coast), pp. 224, 226. ISBN 978-0786965614.
- ↑ Brian James (August 2012). “The Ecology of the Modron”. In Steve Winter ed. Dragon #414 (Wizards of the Coast), p. 14.
- ↑ 4.0 4.1 4.2 Mark Jindra (2001-09-21). The Modrons (Zipped PDF). Wizards of the Coast. pp. 9–10. Archived from the original on 2016-11-01. Retrieved on 2018-09-09.
- ↑ Gary Gygax (August 1983). Monster Manual II 1st edition. (TSR, Inc), p. 88. ISBN 0-88038-031-4.
- ↑ Ken Marable (April 2007). “Return of the Modrons”. In Erik Mona ed. Dragon #354 (Paizo Publishing, LLC), p. 46.
- ↑ 7.0 7.1 Monte Cook, Colin McComb (1997-10-28). The Great Modron March. Edited by Michele Carter. (TSR, Inc.), p. 126. ISBN 0-7869-0648-0.
- ↑ Mark Jindra (2001-09-21). The Modrons (Zipped PDF). Wizards of the Coast. p. 2. Archived from the original on 2016-11-01. Retrieved on 2018-09-09.
- ↑ 9.0 9.1 slade (1996). How the Mighty Are Fallen. (TSR, Inc), pp. 3, 31. ISBN 0-7869-0537-9.
- ↑ Gary Gygax (August 1983). Monster Manual II 1st edition. (TSR, Inc), p. 86. ISBN 0-88038-031-4.
- ↑ Christopher Perkins, Will Doyle, Steve Winter (September 19, 2017). Tomb of Annihilation. Edited by Michele Carter, Scott Fitzgerald Gray. (Wizards of the Coast), p. 177. ISBN 978-0-7869-6610-3.