Assertion: sword's blade | /r/CapableOf | shatter on impact
Facets:
value: with other obsidian blades
type: MANNER
value: with steel swords
type: MANNER
value: with plate armour
type: OTHER
Source sentences:
text: Despite being sharper, prismatic obsidian is also considerably more brittle than steel; obsidian blades of the type used on the macuahuitl tended to shatter on impact with other obsidian blades, steel swords or plate armour.