Ampharos and Charizard are only good in their Mega forms. However, I think that Charizard gets the nod ahead of Amphy because of the unpredictability of having 2 Mega Evolutions.
Moves each Pokemon should have:
-Hydro Pump/Surf
-Ice Beam/Dark Pulse
-Extrasensory/Dark Pulse
-U-turn/Hidden Power (Fire/Grass)/Grass Knot
Nature: Naive/Timid
EVs: 4 Atk/252 SAtk/252 Spe
Item: Life Orb/Expert Belt
Ability: Protean
or
-Spikes
-Hydro Pump/Surf
-Ice Beam
-U-turn/Extrasensory
Nature: Naive/Timid
EVs: 4 Atk/252 SAtk/252 Spe
Item: Life Orb/Focus Sash
Charizard:
-Dragon Dance
-Flare Blitz/Fire Punch
-Dragon Claw/Outrage
-Earthquake/Roost
Nature: Jolly/Adamant
EVs: 252 Atk/4 Def/252 Spe
Item: Charizardite X
Ability: Blaze
or
-Dragon Dance
-Dragon Claw
-Fire Punch/Earthquake
-Roost
Nature: Adamant
EVs: 144 HP/244 Atk/112 Spe
Item: Charizardite X
Ability: Blaze
or
-Fire Punch/Earthquake
-Dragon Claw
-Will-o-Wisp
-Roost
Nature: Careful
EVs: 248 HP/148 SDef/112 Spe
Item: Charizardite X
Ability: Blaze
Sylveon (note that while Pixilate + Hyper Voice is the preferred combination, Moonblast + Cute Charm is an acceptable alternative):
-Wish
-Protect
-Hyper Voice
-Heal Bell/Calm Mind
Nature: Bold
EVs: 252 HP/244 Def/12 Spe
Item: Leftovers
Ability: Pixilate
or
-Hyper Voice
-Psyshock
-Shadow Ball
-Hidden Power (Ground)/Echoed Voice
Nature: Modest
EVs: 132 HP/252 SAtk/124 Spe
Item: Choice Specs
Ability: Pixilate
Lucario:
-Swords Dance
-Close Combat
-Extreme Speed
-Iron Tail/Earthquake/Ice Punch
Nature: Adamant/Jolly
EVs: 252 Atk/4 Def/252 Spe
Item: Life Orb
Find a replacement for Ampharos.
Well right now I have a sylveon that's a calm nature with cute charm ability and 3 perfect IVs in Speed,Sp. Def, and Sp. Atk plus he's a shiny so i want to keep him. His moveset right now is protect, wish, fairywind( when he get to the level that gets moonblast i'll get that) and psyshock. I plan on breeding my other pokemon for dfferent natures cause none of them are the right natures. I don't really have a pokemon with grass moves, which is an issue. I though Ampharos was the strongest electric type there is (outside of legendaries which i don't want to use any legendaries) i don't want raichu cause he's too weak and i don't know any good electric pokemon with a good move pool. I also still don't know a good pokemon to put on my team or rather good pokemon to use, i have a tyranitar but i don't think he's be good with my team.