Does stitchling still can be 3x in a deck? and please put what other runes can be 3x or maybe more in a deck...
nop. the only one rune with Multitude is Lichling and monkey now. I think more champions could get multitude: Stitchling, Veilant Knight, Brubaker Brothers and Redcap Twin (even if flavorwise it would be a bit of a hit) (Twins would lose Raze then though), that SL dinosaur with Reduce Magic.