anyone have any opinions on natures claim?
It's efficient. Will the life matter? Most likely not. One mana is huge... say...against workshop decks. Say against lodestone golem, which makes your ancient grudge cost 3. It also depends on your win condition. If you're swinging with a 7 powered robot, will the 4 life let them live an extra turn? If they're still at 20, it takes a whole 'nother turn to kill them with the robot alone after you've cast nature's claim. I don't know. Sounds like something I'd want to be conscious of when deciding on mah' hate.
About theda adel: I hadn't really thought of deducing exactly what's in their hand from seeing their deck. It will matter less game 2, though, since you don't know exactly how they boarded. But man, she's a hell of a lot cooler than rootwater thief.