raidboss: Fix E7S Betwixt Worlds Tether Condition (#1166)
raidboss: Fix E7S Betwixt Worlds Tether Condition (#1166)

The condition only runs if you're the target, leaving the tether list to
be undefined at Betwixt Worlds Stack markers.
quisquous/cactbot,quisquous/cactbot,quisquous/cactbot,quisquous/cactbot,quisquous/cactbot,quisquous/cactbot