How to fix mages

Seeing that mages have been nerfed into the ground and then nerfed more and more, and DFG is going to be removed, I think they'd need the following item to bring them back into viability:

3000 gold - 50 gold for each patch released after 5.1. Minimum cost: 500 gold. +120 AP +5 more for each patch released after 5.1 +40% CDR +500% base mana regeneration + 50% for each patch released after 5.1

Unique Passive: Your abilities that cost mana deal 5x as much damage. Unique Passive: You abilities that cost mana have a 20% chance to deal 2.5x damage. If you are in 5.3 or greater: Unique Passive: Gain 20% lifesteal and spellvamp + 1% for each patch released after 5.3. If you are Sona: Unique Passive: +5 movespeed, +10 damage ratio on q power chord, +100 range on q. These are DOUBLED for each patch after 5.2.