D&D 5E D&D Magic the Gathering alternate magic system

[cbwjm]

This is a good idea actually. The specific area could give a specific benefit to the Planeswalkers in the area who draw from the same mana source. In the sub-game called Planechase in MtG, your location on a plane affects your abilities and spellcasting where you get benefits and penalties. (+1 to red spells, -2 to black spells, reduce casting cost by 1 for blue, etc). In the game, you get to randomly roll what plane you are fighting on and the fight brings you from plane to plane as you are fighting

Oh man, I'd forgotten about planechase, that was a fun variant of the game which really played up the whole planeswalker angle.