Rune glaive on hecarim Jg? Hear me out

I know it isn't the first thing that comes to mind but hear me out. In a build with runeglaive or I wont build trinity force and here's why With the rune glaive item it has the sheen effect. Even thought it the effect give you 75% bonus ad after an ability it is only 125% less than what triforce will give you. Instead of getting triforce you can get something like black cleaver and make up for the ad lost, have more health than what triforce gives, and more cdr. or you can go any of these items . In the end you end up with more ad, health(or mr), it will all be cheaper and you can give the blue buff to your mid laner or top laner. There are some cons(lose 30AP 30AS 10Crit 8move speed) ( 10armor pen from or 25 bonus health from )but i think that it isn't nearly as valuable as the pros. What do you guys think?