I think the imaginative use of existing skills is to be commended,
and indeed it appears there seems to be new functions for an old
It certainly does restrict some of your skills and undoubtedly some
from the other guilds but it absolutely does not make it impossible
or even difficult to attack the bandit who uses the ability.
The bandit can be hunted down and tracked manually, I suspect your
over reliance on the 'portal' ability leads you to the conclusion
that this function is over-powered.
Written by my hand on the 26th of Leaflost, in the year 1156.