implement backslide in heroic bg. do not implement backslide in woe.

[The Legendary Joe]

If this is implemented, I'd be wanting Ninja skills that are restricted in GVG conditions as well. Ciceda skin shedding will backslide when the ninja is hit, they can shadow jump (rather than just being a 10 SP unhiding skill, they can actually use the jumping as mobility), Shadow slash (in GVG conditions, the target has to be RIGHT next to the hiding ninja in order for it to be used.)

We'd have to enable Assumptio and ice wall as well.

Then we'd be enabling God items and MVP cards in BG as well because it wouldn't be GVG conditions (where they're disabled).