Independent Innate Attack

[kirbwarrior]

The simplest I see is to take Extra Attack (as you did) and 'Extra Defense' but add Long to make the 'arm' as far as the attack (Long is much cheaper in my houserules, so it might seem too expensive to you). Adding Sacrificial Defense would just ice the cake.

Otherwise, I'm not entirely sure how you actually parry an attack with a normal IA, but Melee Capable with some house-ruled enhancement (or maybe just Reflexive) would let you parry with the attack (it would defined as a melee attack for parry purposes).

3e GURPS had a 50% on Surfing (I think? it was a 'type' of Flight) that lets it work while unconscious. Any defense power seems fair to me at that price (it protects you on it's own).

Lastly, I don't know if any of that actually gives you a second chance to defend yourself. ATR (All Out Defense only -40?%) would do that.