The MC dies and meets GOD, the MCs fate will be decided by a spinning wheel, the wheel will decide on the world and 1 power/ability the MC will recieve.
World: Fairy Tail
Magic: Anti-Magic
For the plot you would want the MC to join a guild (Fairy Tail probably cause of the plot armor they got.) and go along with the canon story while injecting our MC in there.
The MC can also learn other Magic so you dont have to worry about the MC only having Anti-Magic.
It would be cool if the Anti-Magic worked with a sword (kinda like Black Clover but without the whole devil thing unless you want it.)
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Sword Slash: The user covers the sword in Anti-Magic nullifying any magical attack when in contact with the sword, the user can also send slices of anti magic for a long range counter/attack.
Anti-Magic Touch: The ability to stop someone from using magic by touching them, when in contact with a person you can cover them with anti-magic making them unable to use their magic.
Anti-Magic Skin: The user covers himself in anti-magic which renders any magical attack useless. (Imagine Gojo Satoru's Infinity but for magic only.) Meaning only physical attacks work.
Anti-Magic Zone: Similar to Mana Zone from Black Clover, the MC will be able to control the magic in a certain area around them, in this case, any person within the zone will not be able to use their magic except for the user.