$begingroup$ To check your magic system with other magic systems, I attempted recreating classic spells with it: Commented Aug four, 2017 at 13:04 $begingroup$ @Separatrix: A differential temperature is exactly the which means of demanding a incredibly hot source and a cold source; a thermal engine functions by transferring warmth https://angelotixlb.qodsblog.com/39417375/not-known-facts-about-real-magic-spells-books