Earth shaker + bloodseeker combo / dealing with that s*t

Is there some actual way of dealing with that in non ranked matches where people just don't manage to buy detection. The combo being es skills w and e, buys shadow blade and instakills people by roaming around with bloodseeker keeping his q on earth shaker... They had even an easy start by just doing the bloodseeker ring on top of my teammates on laning stage -> es uses the wall to block their escape from the ring -> aligns the skills so that es kills the silenced victim with a hit and spell...

That match didn't last long...

Building items to increase your durability and maybe considering items that are more defensive such as:

• Glimmer Cape since no one really gets detection as you mentioned.
• Black King Bar that makes you immune to magic and gives you the chance to escape or fight back.
• Eul's Scepter of Divinity that can either delay the enemy and stop their combo or simply save you some time. Plus it can be used to dodge spells. :D
• Pipe of Insight blocks quite a lot of magical damage and that might help.

There are quite a few ways to counter different play styles, be creative and good luck!

if no one is buying detections, then you should buy Sentry Wards yourself. That's the best way to deal with an invisble Earthshaker

"My team doesn't buys detection" is no longer a good reason now that you have a backpack. Now everyone has free slots to carry wards around. Don't tell me you can't spare a few hundred gold when playing core.