Activate Blasting Station by tapping it and sacrificing Weaponcraft Enthusiast.
When Weaponcraft Enthusiast dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
When Weaponcraft Enthusiast enters, its fabricate ability and Blasting Station trigger.
Resolve the Weaponcraft Enthusiast ability, putting a +1/+1 counter on it.
Resolve the Blasting Station trigger, untapping it.
Resolve the Blasting Station ability from step 1.
Repeat.
This loop transforms the recursive engine of persist into a lethal weapon, relying on Isilu, Carrier of Twilight (the back face of Eirdu, Carrier of Dawn) to grant your nontoken creatures the ability to return from the dead with a -1/-1 counter. When you sacrifice Weaponcraft Enthusiast to Blasting Station, its persist triggers because it enters the battlefield without any counters, immediately returning to cancel out its new -1/-1 counter thanks to the +1/+1 counters provided by its fabricate ability. Meanwhile, every single entry refreshes Blasting Station to fire off another point of damage, turning an endless cycle of sacrifice and rebirth into a devastating, game-ending barrage.