It seems that Cain has a problem with the rain, it is normal, there is a strong storm and marowaks (of ground type) suffer with water and rain, because of its enormous height, Cain only receives damage from the lower part of his body. He is asking for help to Rober which is in front of his huge hoof, Rober uses his psychic powers to make a shield around to not get wet (even if he wears a raincoat), Rober can create a shield for Cain size without problems thanks to his powerful and developed psychic powers ... but first he is trying to come back to life, he has been paralyzed by seeing such a huge marowak

In this drawing I try to draw the scales of cain on his leg, since you see the leg from very close, they did not come out very well and with the rain they do not see much but there are xD I also made some details to give more realism to the hoof from close, I really like how this drawing looks, in this one you can appreciate the orange tones!
PD: please viewer, get closer to look at Rober's face with the zoom xD