Tides
Member
1). Barriers take damage before resistances are applied, either positive or negative. (I don't know if this is intentional or not)
2). Some items do not seem to work on barriers.

As stated already, the -15% spirit resist does not affect damage taken through a barrier, but also the 6% spirit amp does not seem to work either.
Another item with spirit amp, "Soul shredder bullets" does seem to apply the bonus damage through a barrier.

Improved burst (and mystic burst) both do not trigger the added damage component when hitting a player with spirit barrier.
2). Some items do not seem to work on barriers.

As stated already, the -15% spirit resist does not affect damage taken through a barrier, but also the 6% spirit amp does not seem to work either.
Another item with spirit amp, "Soul shredder bullets" does seem to apply the bonus damage through a barrier.

Improved burst (and mystic burst) both do not trigger the added damage component when hitting a player with spirit barrier.