Last word is a bit more powerful than thorn but a lot harder to control, the range on last word isn't realistic though. I've been annihilated from across the cauldron so many times from that weapon. Thorn will take more skill now, you have to place shots on target for it to reward you with DOT. I agree with the final round sniper perk. So many time where a fight that could have been won if it came down to skill was lost because of a BS shot to my toe with a final round.