So, the Hand of Wrath and the Hand of Doom are both right hands. This indicates that they are not meant to be wielded by the same person. It also means that the set could conceivably be any number strong, whereas if it were the Left Hand of Wrath that would heavily imply them to be a matched pair. Doom is not a cardinal sin, thankfully, which rules out the proposed theory as to theme.

Also I like the Castellan.