>>18483157>tfw caught a Hasty 31/31/29/31/31/31 Yveltal. Special attacks are more prevalent in Ubers, Hasty is usually better than Naive.
A tip for soft-resetting:
Get a Hasty/Naive synchronizer, fainted in the first slot (you can leave the chamber at any time, so don't worry about prep work.) In your second spot, bring any Pokemon whose ability triggers a message at the start of battle, like Mold Breaker, Unnerve or Trace, and make sure that Pokemon has exactly 129 Speed. If the Legendary has a +Speed nature and generates a 30 or 31 Speed IV, it's Speed will be 130. If it has 130 Speed, it's Aura message will play before your Pokemon. If it doesn't, and yours goes first, simply Run from battle and talk to it again. Repeat until it goes first, then catch it.
It lets you filter out that 50% that don't Synchronize and any Speed IV less than 28 (since they sometimes win the speed tie at 129.)
