Just managed to get an ice wyvern egg on valguero using a Deinonychus, it worked pretty well, I got a lvl 83 ice wyvern egg, if you do it on a deino then stay low and if you see wyverns, try to back away and make sure they don't see you. Kill off any bugs that try to kill you and climb the walls to get into the crevices that have the eggs in, and DIP, run outta there as fast as possible when you get an egg, the best crevice to go for on a deino is the one that's closest, for me that was the one bear the fire wyvern cave enterance. Good luck guys!

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