Potestas
There are many different adversaries that characters may need to overcome: the environment, too little time, other characters, and the creatures that inhabit the game setting. Many are natural, others magical, and some are from other worlds: all may be dangerous. The values below are the creature's minimum Stature as an adult: young or undeveloped creatures may have a Stature of 0. There are also creatures with a minimum Stature of 0 (e.g. rabbits, birds, fish): characters cannot gain experience by defeating such creatures.
| Stature | Creatures |
| 1 | Horse, Human, Kattar, Mungodan, Wolf, Skeleton, Zombie |
| 2 | Bonacon, Dwarf, Ghoul, Mercanian, Vampire |
| 3 | Boar, Elf |
| 4 | Bull, Troll |
| 5 | Bear, Gargoyle, Lion |
| 6 | Basilisk, Pegasus, Ogre |
| 7 | Griffin, Hydra, Manticore |
| 8 | Elemental, Dragon, Giant |