HP Ice is the best option over Mienshao's Stone Edge or Fake Out, as this lets it hit Landorus, Gliscor, Salamence and Dragonite without having to resort to Stone Edge. But the set is still fine if you can't get the right IVs for it.
Techniloom is now the way to go, even though Poison Heal sets will have to play differently:
-Bullet Seed
-Low Sweep
-Mach Punch
-Spore/Stone Edge
Nature: Adamant/Jolly
EVs: 4 HP/252 Atk/252 Spe
Item: Life Orb/Choice Band
Ability: Technician
or
-Swords Dance
-Bullet Seed
-Mach Punch
-Spore
Nature: Adamant/Jolly
EVs: 4 HP/252 Atk/252 Spe
Item: Life Orb/Lum Berry
Ability: Technician
or
-Bullet Seed
-Force Palm/Low Sweep
-Stone Edge
-Spore
Nature: Jolly
EVs: 4 HP/252 Atk/252 Spe
Item: Choice Scarf
Ability: Technician
IMO, Keldeo is still better off with Timid, as tying with the other musketeers and Infernape who use Choice Scarf may be important.
EQ is redundant with Terrakion's Close Combat. Since Rock + Fighting have good coverage already, you can use Sacred Sword or Rock Slide as more reliable STABs. And from what I've seen, you have too many Choice users, and that could be a bad thing if you don't predict well enough. You seem to lack entry hazards here, so Terrakion can set up Stealth Rock for you:
-Stealth Rock
-Close Combat
-Stone Edge
-Swords Dance/Taunt
Nature: Jolly
EVs: 252 Atk/4 SDef/252 Spe
Item: Focus Sash/Air Balloon
Hitmontop is still a better Rapid Spinner than Hitmonlee because of the latter's extreme physical fraility; Hitmonlee is better off smashing the opposition rather than supporting. Hitmontop also has better defenses, making it easier for it to get Rapid Spins in. Also, like I said before, Earthquake is redundant with Fighting:
-Rapid Spin
-Foresight/Toxic
-Close Combat/Hi Jump Kick
-Stone Edge/Sucker Punch/Rest
Nature: Impish
EVs: 252 HP/252 Def/4 SDef
Item: Leftovers
Ability: Intimidate
Or you can try Hitmonchan, who has better bulk than Hitmonlee, and hits harder than Hitmontop:
-Foresight
-Rapid Spin
-Drain Punch
-Ice Punch
Nature: Adamant
EVs: 40 HP/252 Atk/216 Spe
Item: Leftovers
Ability: Iron Fist
What's the purpose of HP Fire on Lucario? I don't see much use of it, TBH. HP Ice is the better HP type to use on it for the same reason as Mienshao. Shadow Ball or Dark Pulse are better coverage options over Dragon Pulse; Fighting + Ghost/Dark is basically unresisted coverage (even though Fighting + Dark is resisted by Heracross and Toxicroak). Or you can opt for a Nasty Plot set:
-Nasty Plot
-Aura Sphere
-Shadow Ball/Dark Pulse
-Vacuum Wave/Hidden Power (Ice)
Nature: Modest/Timid
EVs: 4 HP/252 SAtk/252 Spe
Item: Life Orb
If you want to keep Specs, that's fine:
-Aura Sphere
-Vacuum Wave
-Hidden Power (Ice)
-Dark Pulse/Shadow Ball
Nature: Modest/Timid
EVs: 4 HP/252 SAtk/252 Spe
Item: Choice Specs