Invasion of Amonkhet triggers, causing you to exile it, and return it to the battlefield transformed as Lazotep Convert.
Choose to have Lazotep Convert enter the battlefield as a copy of Ojer Taq that is a 4/4 Zombie.
When Lazotep Convert enters the battlefield, Blasting Station triggers, untapping Blasting Station.
Activate Blasting Station by tapping it and sacrificing Lazotep Convert.
When Lazotep Convert dies, it triggers, causing you to exile it, and return it to the battlefield transformed as Lazotep Convert.
Choose to have Lazotep Convert enter the battlefield as a copy of Ojer Taq that is a 4/4 Zombie.
When Lazotep Convert enters the battlefield, Blasting Station triggers, untapping Blasting Station.
Resolve the Blasting Station ability from step 5, dealing 1 damage to any target.
Repeat from step 4.
This loop turns a defeated Invasion of Amonkhet into an explosive engine by casting its back face, Lazotep Convert, as a copy of Ojer Taq, Deepest Foundation. Because Blasting Station happily untaps whenever any creature enters, you can sacrifice the newly arrived copy to ping any target, triggering Ojer Taq's death ability to send it back to the exile zone and recast it as another copy of Ojer Taq. Each iteration feeds the Blasting Station sacrifice loop endlessly, converting a single siege into an infinite storm of damage, death, and entry triggers.