Kleptomancy suggestion for Riot perusal

I was thinking about how very well a small subset of Champions utilizes this rune, and how frustratingly awkward it is for other users even if they would otherwise prefer opting in to such sustain/gold generation over a damage oriented keystone.

I would propose that rather than being a spellblade type effect, the proc be made like taste of blood. The addition of a cool down on it tones down the Ezreal/Sona nonsense, and allowing ability hits to proc it opens it to use by all champions, with only slight favor towards poke champs.

My initial thought on Cool down would be 10 seconds, but it may be better to bump it up to 30 or 40 seconds and make it always give a consumable rather than having a chance.