Activate Blasting Station by tapping it and sacrificing Gravecrawler.
When Gravecrawler dies, The Ghoul triggers, causing you to get two rad counters and create a Treasure token.
Resolve the Blasting Station ability.
Activate the Treasure by tapping and sacrificing it, adding .
Cast Gravecrawler from your graveyard by paying .
When Gravecrawler enters, Blasting Station triggers, untapping Blasting Station.
Repeat.
This loop is a masterclass in recycling, using Gravecrawler as the ultimate renewable resource fueled by its own undead nature. By feeding the skeletal warrior into Blasting Station, you trigger the artifact to untap upon its reentry while pinging away your opponents' life totals. Meanwhile, The Ghoul, Gunslinger oversees the graveyard-to-battlefield dance, turning every demise into a Treasure token that conveniently pays the black mana needed to recast Gravecrawler from the graveyard.