I see a big problem with new Spelchief edge

Usually Spelchief edge takes support bullies, those who can do or cause a lot of damage even without items - brand, zyra, karma, morgana and other aggressive supports. Giving them bonus speed after hitting gives unequal advantage over passive supports who uses Ancient Coin, which, let's be honest, provides pretty useless bonus equal to Zilean passive.

I feel, bottom lane will be AP mage (support) fest. Yeah, turbo Brand or Karma with double speed.

Probably RIOT should consider swapping Spelchief edge and Ancient Coin bonuses. It's passive supports who are in need for escape mechanism.