Q:
Blind, Block & Evade
Anything that triggers a hit check should consume the blind, there is a bit more details in one of the patch notes if you want to look it up. In regards to blind think about what would happen if you replace shelter with aegis. If the hit is allowed to go through aegis would get removed enough though the attacker was blind which wouldn’t really make sense. In the past I think it was possible to remove the blind simply by swinging at someone even if they were out of range.