100% Regice: power up to lvl 30, max out, do nothing?

Do nothing, its what i did with my hundo suicune.

Unfortunately, the Regi-trio are all defensive pokemon that do not have good defensive movesets, are weak to fighting, and can't be placed in gyms anyway.

If Lapras is the best ice attacker you have, Regice might be worthwhile.

All of the ice attackers are so similar that my policy is just power up your favorite one. I had 100% Lapras, so that made the choice easy for me. I can't stand the way Regice looks, but if you like it, go for it.

Even though it's DPS output is pretty mediocre, Regice is my favorite of the trio, since I really like how it looks. If I had a hundo, I would definitely max it out. However, I'm also sitting on a ton of stardust and rare candy, since I play frequently, so take my opinion with a grain of salt. 😉

I would max it out, or at the least power it up to level 30 :) it's a 5% drop in damage but a 12% increase in tankiness compared to Articuno, I'd say that's worth it to have both on your team. I caught a 14/15/15 98 Regice and I'm already slowly maxing it out!