pokemon-xy-news:A very interesting theory i saw around (not mine) is how the eeveelutions are placed
pokemon-xy-news:A very interesting theory i saw around (not mine) is how the eeveelutions are placed in this eevee map. You will notice that the eeveelutions that are opposite to each other have the advantage/disadvantage dynamic. Vaporeon (Water) is weak against Leafeon (grass), Glaceon (Ice) is weak against Flareon (fire) and Psychic (Espeon) is weak against Umbreon (Dark).If this is true (could be not intentional) then either Sylveon is a type weak against Jolteon or vice versa. -- source link