How viable is Hidden Power Ground on Latias? I know Fire is all the rage but I'm fairly confident I'm sitting on this at the moment (been Super Training and re-entering the stats into serebii's IV calc until Metalkid's is back online):
Latias - Timid
31
1-3
31
30
22
31
Also, someone mentioned earlier that serebii's IV calc will tell you what the next helpful level / total EVs will help confirm the stat, however I can't seem to find any mention of that on the calculator...
Thanks for asking this, I actually got a ground one before but I toss'd it. In metalkids's it's simple to do, just replace the 1,2,3,4,5 with the number of your target, say you input the stats and all at level 30, you just go to the second row and input the stats again when it's now level 31 and hit calculate to check. I'm not sure tho, the SpD is somewhat lacking but the atk is definitely worth noting since you minimize foul play damage.
Is this Raikou any good?
31/x/30-31/31/15/31 HP ice
Is HP ice worth the low special defense?
Toss imo, unless you'll be running it with sash or scarf. There are a lot of people who got 5-6IVs lately, so I don't think it would be impossible for you to get something similar.