Just a quick note on Poison Shield and then we can get back to Relics:
ARB Page 108-109 (emphasis mine)
In order for a target to be affected by these
weapon poisons, the strike must do body damage
to the target. This effect is for one strike
only and can be resisted or blocked by a Poison
Shield or a Magic Armor (or in the case of
certain races, possibly by racial Resists). If a
Poison Shield, a Magic Armor, or a racial Resist
stops the weapon poison, the target will not
take any damage from the weapon blow. When
using these weapon poisons, the correct call is
“<damage> <poison name> Poison.”