Ok, I just have this one, but it's a Christian fantasy idea.
So, I want to have 7 Christians of different genders, ages, and Earthly time periods to portal to a fantasy world filled with Elves, Dwarves, Mermaids, etc. The 7 will each have a superpower while on the Fantasy world. All the powers are abilities that Jesus had on our Earth: Flight, Healing, Prophetic visions, Invulnerability, Water control, Conjuring, and Mind Reading. The 7 humans are on Fantasy world for a purpose: to be God's representatives and helpers. I basically want to rewrite major biblical stories with a fantasy flavor.
For example, the man that can Conjure items would help the woodland elves rebuild the walls as protection against the nearby giants as well as helping to fight off the giants and their allies with his conjured tools, supplies, and weapons. (parallel to Nehemiah rebuilding Jerusalem's walls).
After each human has had their solo adventure, like the Union Civil War nurse (Healing) accompanying elvish Abraham on all his travels and helping the elvish Sarah give birth to the elvish Isaac and Ishmael, they would appear in other Biblical stories together, with the last story with all 7 of them together helping the draconic Jesus in his ministry and his elvish disciples. One or two of them may remain living on the fantasy world to help the elvish Paul jumpstart the new spiritual kingdom.
So what do you think? Do you like it, or do you think it could be better somehow?