He then burns in the ensuing bloodhunt.
Does his special trigger even though he was burned in a bloodhunt
(not combat) and there is no opposing minon?
Hector's special triggers if he's burned or goes to torpor in combat,
and unless I'm mistaken, bloodhunt referendum happens outside of
combat.
Yes. There's combat[1], and the burned minion is the opposing minion. See also
Hell-for-Leather after burning a vampire in combat.
[1]
http://groups.google.com/group/rec.games.trading-cards.jyhad/msg/4780ab690dbc5fd8