I finally looked at the new itemization for mages . . .
Hextech Rocket Belt (Temporary Name) Recipe: Hextech Revolver + Kindlegem + 800 Gold = 2750 Total Gold Health: 300 Ability Power: 80 Cooldown Reduction: 10% Active - Fire Bolt: Dash 300 units in a direction (at 1200 speed) and then unleash a nova of fireballs that deal 100 - 250 (+25% of your Ability Power) magic damage to enemies hit. Enemies hit by more than one fireball take 15% damage from additional balls. (30 second cooldown, shared with other Hextech items). This Dash cannot go over walls. One of the issues that we've struggled with in a lot of mid-range mages is that many of them essentially brute force their way to victory through raw numbers. They also don't have a ton of ways to opt into more flexible or flashy combat patterns with their core itemization. Hextech Rocket Belt is an extremely dangerous effect that acts as either a range increased for their spells - a burst of initiation power - or simply a quick reposition tool so that these mages can fight in a more clever manner. Hextech GLP-07A (Temporary Name) Recipe: Catalyst of Aeons + Hextech Revolver + 750 Gold = 3000 Total Gold Ability Power: 80 Health: 300 Mana: 400 Passive - Shared with Catalyst of Aeons Active - Ice Bolts: Throw an arc of five piercing icy bolts that explode to deal 100 - 200(+20% of your Ability Power) as magic damage. Enemies hit are slowed by 60% decaying over 0.5 seconds. (30 second cooldown, shared with other Hextech Items) Hextech Frost Cannon shares similar principles here - except targetting more brawler focused or CC focused mid-range mages. It adds light wave clear - can serve to hit confirm spells or aid in kiting opponents. An extremely flexible tool to enable mages to better plan out how they want an encounter to go.
Umm . . . why?

I know these are the more well known initiators, but this also opens up another problem.
The biggest thing is this synchs with
and makes ganking mid lane practically impossible anymore.
Most people don't understand that mobility mid laners may already have that advantage, but "most also are squishy as hell and blow their mobility to catch people out. The thing about 0 mobility champs is they have lots of utility + damage and play absurdly safe. With this item they'll almost never be gankable.
Also, what's stopping the infamous adcs from swapping out GA for this item? What's stopping Darius, or Garen, or Renekton? The sixth item is a crapshoot grab w.e. The gap closing item fits that perfectly. 30 seconds flash is more broken than you're thinking it actually is. It'll be built on everyone lol.
30 seconds flash > GA.