Skins that fail to deliver (need opinions)

I am asking you guys to mention any skins that look amazing in the picture but they suck in game.

I will mention a few, and i want you to add yours so maybe rito can do something about it.

Boom Boom blitzcrank

Full metal pantheon

Rogue admiral garen(his sword is too short)

Nightmare tryndamere (now i like this skin still, but its nothing lile the picture, in the picture it's the sickest, most awesome skin ever made)

Headhunter rengar ( i also like it, but it's not like the picture)

What's your opinion??