Are you going to lock him out at 25 or keep leveling him? If you're going to keep leveling him then I'd suggested not getting either and saving your money then buy frozen nightmare gear when you get to 30. I just did the same thing with my bird, I bought him onyx, used it for 5 levels and then switched to shivering. You can always resell but I always seem to lose money when doing that. haha.
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