Dollhouse of Horrors and Blasting Station on the battlefield.
You do not control a Construct.
({1} magic symbol) available.
Steps
Activate Dollhouse of Horrors by paying ({1} magic symbol) , tapping it and exiling Tree of Perdition from your graveyard, creating a token copy of Tree of Perdition that is a 0/0 Construct with haste.
When the Tree of Perdition token enters the battlefield, Blasting Station triggers, untapping itself.
Activate the Tree of Perdition token by tapping it, swapping an opponent's life total with Tree of Perdition's toughness.
Activate Blasting Station by tapping it and sacrificing the Tree of Perdition token, dealing 1 damage to the opponent whose life total was swapped.
The opponent loses the game due to having zero or les life.