Sion and Yorick runes under the new system

I hardly play anybody else anymore, and I'm having a hard time trying to figure out what runes these two are going to use. Resolve is the obvious choice for the primary tree; Grasp, Demolish, any of the resistances depending on the match-up, and Overgrowth seem really good for them. But I can't figure out a secondary tree that'd be good for either of them.