All spirits are fully released. The Thunder helper was a fully released Nadja while the Fire helper in both cases was a fully released Sathisa.
I had personally tried to build a deck featuring Sathisa, Nesca and Gartas, but gave it up as a lost cause, not thinking it could survive the Lykos battle. Masqueraid, however, came up with a valid strategy: Sacrifice Sathisa for a helper Sathisa and then powering through the rest of the battles. All credits for the Sathisa-Nesca-Gartas setup go to Masqueraid.
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Alright. So I just posted a picture of me clearing Triple Gauntlet in 31 turns. This blog post...