Official illustrations and confirmation of the types of the three ‘starter’ Pokemon in Pokemon X and Y are now revealed. Official illustrations of the two Legendary Pokemon from the promotion video and details on their height and weight also revealed.
Grass-type is strong against Water-type, but weak against Fire. Fire-type is strong against Grass-type and weak against Water. While Water-type is strong against Fire-type Pokemon, but weak against Grass.
Heights and weights for the two legendary Pokemon are:
Xerneus, 3.0 m (9’10”), 215.0 Kg (474 lbs.)
Yveltal, 5.8 m (19’00”), 203.0 Kg (447.5 lbs.)