1. SR guarantees 2HKO on Latios
2. HP Psychic and Flying, though they are in AC so should I not mention those? I'm new so I apologize ;~;
3. I meant RP Landorus-I, I'll fix that. I just mentioned Pokemon that normally set up on choice locked Keldeo, those are what came to mind.
4. Those aren't counters. RD Keldeo beats Venu (Giga from Timid foes 83% to Keldeo, meaning 100% keldeo can set up RD ftw lol). It lures all of those in and can beat them. Again, RD is AC so same as #2