I like you! I'll kill you last.

Considering plans to one day kick all the Noxian whippersnappers off his proverbial lawn (all of Noxus being his old crib. Go read the lore) out of all those who may stand in his way I think he'd come closest to respecting . Partially because Sion might be his closest Noxian match in sheer battle lust and might. Also because it's fun to imagine, if Mord sired any unlucky children before becoming the revenant, Sion could be his (un)living descendant. Wouldn't stop either of them from whaling on each other till one went down but they'd probably enjoy it. Like pissed dead grandfather like pissed dead grandson.