Alright, this one is quite tricky. It is best done with a buddy. Set up an online ranked match and have you buddy look. There's not many folks playing the game, so it should be easy. Play the mode and try to tie during it. The Death Drain will appear during a 'overtime' mode that will happen if there is a tie. In order to get the cheevo, just use that power-up and defeat your opponent. (Then help him/her get it too!)