Originally Posted by Fat shrang
While Latias is definitely worse off without Soul Dew, she is still very much functional. With a spread of max HP/max SpD Calm, she avoids being 2HKOed by Scarf Water Spout. Although she's outsped by stuff that she shouldn't be (you can use 96 Speed EVs to outspeed Modest Specs Kyogre), she is still a very solid defensive Pokemon that can hold a number of teams together. I've been using her in about 3 of my teams, every time where I see "hey I'm Kyogre weak", I go to Latias unless she is completely incompatible with my team.
I agree with Shrang here. Although I was really sceptical of Latias lacking Soul Dew in Ubers, my opinion changed when I saw it take a Modest Water Spout from Kyogre like a boss and heal off the damage. Sure, it will be like 10x better when Soul Dew comes out but currently it is quite a viable Pokemon with decent immunities and resistances.