...what are you on about Krau? Zekrom is still decent as a salamence/kyogre/Ho-oh check.
I have enjoyed using a tailwind toxic set recently, with shuca berry, dragon claw, bolt strike, toxic and tailwind. It provides a decent amount of team support with the two support moves fucking up stall and offense respectively if you get a free turn (which isn't too hard, considering it can check a number of fairly common mons). It mandates a team-mate who can switch into groudon, obviously, but after groudon is toxic'd by it, groudon becomes a lot easier to deal with.
Also not really set up bait for xerneas considering this calc:
252+ Atk Teravolt Zekrom Bolt Strike vs. 104 HP / 96 Def Xerneas: 246-289 (58.7 - 68.9%) -- guaranteed 2HKO
yes obviously it can switch in on a dclaw, but its far from easy to take advantage of, and tailwind means that you have team mates that will always be able to deal with it if needs must.
There are also a couple other variants (I know Dice made a hone claws one that worked well).