Tear of the Goddes should be given the Adaptive "passive"
For a while now Riot has been showing us their pre-pre-season work on the new runes. Well one of the new runes has a key word in it description of being adaptive which means that it gives you bonus AD or AP based on which you have more of.
Here's an example.
[{quoted}](name=Riot Sparkle,realm=NA,application-id=A7LBtoKc,discussion-id=9ls3OEo8,comment-id=,timestamp=2017-07-26T19:47:58.296+0000)
Trophy Collector
http://i.imgur.com/uwGjaZg.png
Gain +1 Ability Power or +.7 Attack Damage (Adaptive) when you or a nearby ally kill an enemy champion or an enemy ward.
This is what should be added to
it should give you a little bit of bonus AD or AP as you stack it, depending on which you have more of. Something like 1 AD or 1.5 AP for every 25 stacks (So a maximum of 30 AD or 45 AP). This would make the item much more attractive to buy since you wouldn't be completely ceding the lane for buying it since you'll still be able to get a little bit of damage out of just Tear.
Now 30 AD and 45 AP may sound like a lot but remember that that number is with MAX stacks of the item and you're still going to want to upgrade it at some point, preferably before you actually hit the max stack mark since the upgrades stack faster. This is just so that people can feel better about starting Tear and so it will be purchased more often.