lol what's up with that.
Because its red, so many of you jump to "maybe its Fire"??
Poison was an interesting thought...but I'm pretty sure this thing will be Dark...and with how it's so nicely airborne, Flying is quite granted.
I've been thinking about my earlier guess for Xerneas being Grass/Steel...
Frankly I realized it would be kind of unfair if Xerneas was Grass AND Steel, while Yveltal is Dark...and merely Flying.
So Id go as far as to say Xerneas could be pure Grass D:
Akin to the pre-Dragon legends, who have all been just one type, with only Flying as an extra
Lugia - Psychic / Flying
Ho-oh - Fire / Flying
Groudon - Ground
Kyogre - Water
Rayquaza - Dragon / Flying
...(then all either type1/Dragon or Dragon/type2)
Xerneas - Grass
Yveltal - Dark / Flying
sounds like a continuation of using the rest of the types on mascots ;)
Or even Xerneas being Steel or something..