Siphon Soul Siphon Soul is a 6 Mana Cost Rare Warlock Spell card from the Legacy set! Flavor Text You probably should avoid siphoning your own soul. You might create some kind of weird infinite loop. Mana Cost: 6 Crafting Cost: 100 / 800 (Golden) Arcane Dust Gained: 20 / 100 (Golden) Rarity: RareClass: WarlockType: SpellSet: Legacy Tweet Rate this Card Rate this item:1.002.003.004.005.00Submit Rating Rating: 4.0/5. From 1 vote. Please wait... By: Stonekeep - March 26, 2021 - Updated: 4 years ago