Activate Selvala by paying and tapping it, adding at least 1.
Activate Blasting Station by tapping it and sacrificing Selvala.
Activate Slimefoot and Squee by paying 1 and sacrificing a Saproling, returning it and Selvala from your graveyard to the battlefield.
When Slimefoot and Squee and Selvala enter, Slimefoot and Squee triggers once and Blasting Station triggers twice.
Resolve both Blasting Station triggers, untapping it.
Holding priority, activate Blasting Station by tapping it and sacrificing Slimefoot and Squee.
Resolve the Slimefoot and Squee trigger, creating a 1/1 Saproling creature token.
When the Saproling enters, Blasting Station triggers, untapping Blasting Station.
Repeat.
This loop is a masterclass in recycling, turning the graveyard into a revolving door fueled by Selvala, Heart of the Wilds and its massive mana generation. By using Slimefoot and Squee’s recursion ability to pull both itself and Selvala back to the battlefield, you continually trigger Blasting Station to sacrifice your creatures, deal damage, and untap itself. Meanwhile, the Saproling token generated by Slimefoot and Squee’s entry provides the exact fuel needed to keep paying for the resurrection cycle. While Frostcliff Siege sits quietly on the battlefield, its chosen Temur or Jeskai mode can even grant your team useful buffs or extra card draw along the way, though the core engine relies entirely on this infinite loop of death and rebirth.