Bullet punch SD Lucario (only fears Tentacruel, who is coincedentally faster and cannot ohko with scald, so you really need to keep it healthy all game just to have a chance to defend against it. Lucario can only set-up in front of Jirachi though (or on a switch)), Sub+Bounce Gyarados is only "handled" by politoed, and not effectively at that Thundurus-T scarfed or otherwise can manhandle your team if it correctly predicts a mamo switch in and uses grass knot. Double dance haxorus is quite literally going to KO something, so choose carefully.
Just looking for threats to your team and those came up :) Most are obviously not the "cream" of OU at the moment.
The team does look great though, it'd take careless misprediction with Tornadus to lose I guess.
Edit: Despite tentacruel beating jellicent, a spike stacking team (deoxys-d) with a sub-disable gengar can literally troll right through your team. Sub-disable Gengar also fears little from Jirachi so I guess your best bet would be to wish pass and pp stall.