Assertion: doom | /r/CapableOf | challenge mephisto
Facets:
value: once a year
type: TEMPORAL
Source sentences:
text: Doom made a deal with the demon Mephisto; he was allowed to summon and challenge Mephisto once a year and try to win back the soul of his deceased mother, but each time he fails the people of Latveria will grow to despise him more and more.