How about DoT Heal item for Mages?

So I think ATM the main 2 things holding back Spell Vamp are:

1. Champs like Vlad/Ryze/Swain would be too strong

2. Burst Spell Vamp is a pretty broken mechanic

So instead...

Why not have an item that heals for a flat amount of HP that scales by level and has a small cooldown?

• This item wouldn't be abused by short CD mages because it has a cooldown
• Wouldn't be abused by tanky mage-bruisers because it heals a flat amount of HP that would only be efficient on champs with low HP pools
• Wouldn't have the burst-heal problem because its a DoT