Good enhancements should total 7 ability points, evil should total 6, unless the number is symbolic (e.g., Tithe, which is 1/10). Weapons should total 5, unless they are horses.
That being said, Slaughtering the Garrison is too boring. Everything is Interrupt/Negate + Win these days. What Redemption needs is creative battlewinners like a 7/0 GE - "If used by a WC hero, negate evil characters. First strike. Protect your WC heroes from the next evil enhancement played this battle. Cannot be negated".
Jonathan's Bow is ridiculously OP.