So,
Question 1
I have new-school Lords of the Rock Tyrion in play as well as everybody's second favourite clansman*: Timett Son of Timett.
My opponent flips Valar Morgulis during the plot phase. In response I do the obvious thing, using Tyrion's response ability to kneel Timett; saving Tyrion from certain death.
What happens next? Obviously Tyrion lives, but what about Timett? His effect says that he can't now be killed by Valar, but does that matter? Has he already been killed (made moribund) by Valar's kill effect? Does his new unkillable status prevent him from being swept into the dead pile, or has it arrived a day late and a dollar short?
In other words: Who's manhood gets chopped off and fed to the goats. Mine, or my opponent's?
Question 2
Assuming that my mismatched comedy duo did survive until the challenge phase, I'd probably do something like using Tyrion to waddle across the board and punch my opponent in their metaphorical face.
Now, this seems like a pretty simple question and I'm fairly sure that the answer is yes, but the outcome seems good to be true: If I win the challenge with Tyrion (with Timett alive and kneeling) does Timett claim power for Renown when Tyrion wins?
Question 3
In a similar vein to the above, if I (for some mysterious reason) use Tyrion to launch a military challenge against a Stark opponent, on a day in which Timett is engaged elsewhere and isn't on the board: What happens when my opponent shouts "Nyah! Lethal Counterattack!". Does my board get completely nuked?
Sure, all my Clansman characters are 'participating' (because of Tyrion), but does that count as 'attacking'? I'm fairly sure that it does, but it seemed like a thing worth checking.
*Obviously everybody's first most favourite clansman is Shagga Son of Dolf.