User blog comment:Bachoru/The Executioner - new item suggestion/@comment-89.69.142.30-20111124111056/@comment-3450702-20111124184250

DoT doesn't stack, just the slow. And doing the calc, it's a ghostblade with 25% lifesteal bonus, and a different passive/active. So it's no more cost efficient than other items (and Warmog's gives 6k stats for 3k gold, so that's that).