There was also the third story, Vampire Trap, in TFG.
"Vampire Trap" (with gaming notes by SJ) -
https://sjg-warehouse-23.myshopify.c...gamer-number-4
I do think the Djinn's blade ability to generate at no cost an 80ST whirlwind is a bit overpowered being able to kill everything around you unless they make a 4D6 saving throw vs DX.
The Spirit Binding rules were in this issue and Bind Spirit was an IQ13 spell, however it could be easily over-ridden by Remove Thrown Spell, which seems to make it too easy to free spirits. I would expect a Dissolve Enchantment or something weightier than a basic Remove Thrown Spell.