Why did she go after Lordaeron? What ties did she have to Lordaeron wanting to conquer it with Varimathras?
Also why didn't Varimathras just take the hit from Sylvanas in the first place and get killed by her if they can just respawn in the Twisting Nether anyways?
I mean to reconquer it from the Quel'Thalas Scourge at the time she besieged the Lordaeron Scourge with Varimathras in WC3. Why go after Lordaeron when she could have taken back Quel''Thalas from the Scourge instead, and build her own kingdom there?