>>6085454Even though it is my own phonepost, I'll make my own suggestion.
I'd go for Unown. Because Waltur's actions are in effect controlled by our writings on this board, I think there is no better mon to represent him than a pokémon which is literally its own writing system. As Waltur is a conduit for our delirious ramblings I think there is no better pokémon to represent him than one which is a symbol of our methods.