If psychic shield is played defensively ( Prof's AH) can it be negated ? No, you can't negate defensive actions (meta 43) but on next offensive turn can it be negated? I'm thinking not because that is an attack (crosses table / affects opponent ) and is a special and that's what the AH forbids. Same argument could be used from card text of BJ, CD cards. Am I missing a meta?...wait. It's #42 isn't it?
http://overpower.ca/pages/meta.php#41
Actually, you can. The negate is not a targeted effect, but rather a blanket effect that affects the opponent.