Thinking about it, maybe it does make sense with the Normalium-Z. I was mostly talking about SE coverage with x-scissor, but yeah after looking, the neutral coverage gained actually covers a bat load of dangerous threats, some of which could get caught off guard by the z-move or even a +2 double edge thinking they can get a safe KO or just set-up (Charizard, Pinsir, Zapdos, Moltres, Dragonite, Heracross, Salamence, Staraptor, Volcarona, Kommo-o, Blaziken, Togekiss, Rayquaza, Tornadous, Thundurus, etc.)I feel like the overlapping resistances on Leaf Blade + X-Scissor is detrimental to Leafeon (especially since it doesn't get Bug STAB) so I'm kind of considering Double-Edge for the improved neutral coverage? It's even on its PU/ZU analyses for this gen. If we give it Normalium-Z like the analysis if it also has Swords Dance, then I think it could be pretty cool. Anyways, discuss.
EDIT: It would definitely not be getting Return
Seeing that, I'm down for this addition now.