Improve armor of reprisal

[zenzombie]

Armor runics have vastly different value, with reprisal being one of the weaker ones. I think a buff would make sense because enchanting it works against the player due to hits landing less often. One idea is to activate the runic on every attack attempt, not just those that land. The reprisal damage might also need to be adjusted as part of the change in order to ensure it is not overpowered.

[RojjaCebolla]

It would be more interesting, and follow the Brogue model of rewarding investment, if it dealt damage on miss, instead of dealing damage on hit.