pros: A REAPER cons: he can't death blossom the kraken

... but pros: now he's not stealing PotG from the natives by death blossoming the kraken

can he still yell DIE DIE DIE at it though?

reaper just AHH MY GUNS WEHRE

consider: become vapor, float above the water

or apparate onto the boat

His adrenaline response went "oh bother this nonsense" first before logic had a chance to weigh in

Clearly he needs to carry fifty swords with him at all time so he can stab, toss a sword away, repeat.

sensible

He's now Johnny 50 swords instead of Johnny 50 guns

I'd expect no less