Assertion: spider | /r/HasAspect | a 0.8% chance
Facets:
value: in the nether
type: LOCATION
Source sentences:
text: In the Nether, a spider (spawned with a spawn egg, commands or spawners, since these do not naturally spawn there) has a 0.8% chance to spawn a wither skeleton on its back and form a wither jockey instead.