Gyarados is not a late game sweeper, Stealth rock prevents him from that, he is in fact an early game-midgame havoc wrecker who's main goal is to force switches and make your opponent show their hand much earlier than they should, or in the case of fighting someone who has no idea what to do, sweep their entire team.
If you want an "Non smogon set" as so much of this forum seems to keep crying on about use this.
Gyarados @ Leftovers
252 Attack/252 Speed/4 hp
Substitute
Earthquake
Stone edge
Dragon dance
This lets you switch in on something that can't do much, sub up on a resisted hit or a switch and either kill their counter, damage whatever they switched in or Start dragon dancing up if the opponent wasn't smart enough to switch to a proper counter. ( jolteon and electrivire are NOT proper counters. ) lack pf Physical stab hurts a little bit, but those two moves give you much better coverage in 2 attacks.
. . .
Even if this for real life play, Gengar learns Darkpulse, Thunderbolt, energy ball, psychic among other things through TM's.
Try this set.
Gengar @ Life orb
Timid with levitate
252 Special attack/252 speed/ 4 hp
Thunderbolt
Shadowball
Explosion
Focus blast/Energy ball
Focus blast lets you OHKO tyranitar who may try to switch in, Thunderbolt takes out bulky waters, Energy ball kills off swampert and Shadowball is great STAB that dents a lot of things, and when all said and done, You can even explode on something. Just make sure scizor's dead first. If your team needs a great revenge killer, use Modest Choice scarf gengar, same EV spread with Thunderbolt, shadow ball, Explosion/Trick and Hidden power ice/Focus blast.
Rhyperior and swampert are worlds apart role wise, so I see what you mean by nothing, but he said himself he wants an offensive team, and everyone here is suggesting "balanced team" pokemon.
That said, this is a terrible set.
Rhyperior can only wall things with substitute and sandstorm in play, but his main selling point is that unlike walls he can KO many of his commons switch ins ridiculously easy from behind a sub.
Use this set for "walling"
Rhyperior @ Leftovers
Ability: Solid Rock
EVs: 132 HP/192 Atk/168 Spd/16 SDef
Adamant nature (+Atk, -SAtk)
- Substitute
- Swords Dance
- Earthquake
- Stone Edge / Megahorn
switch in to a physical attacker, sub up on the switch ( or lol at them when they fail to break your substitute ) setup a swords dance and kill whatever is in. After 1 swords dance, Earthquake OHKO's swampert and and whoever else might try to come in that doesn't have intimidate . ( not to mention It's cool ) The speed lets it outspeed Swampert/Machamp/Porygon2 , major counters to most of OU's premier physical attackers.
Just remember to have a Tyranitar/Hippowdon setup sandstorm before you bring this thing out,as even STab grassknot from celebi isn't enough to take this beast down ( assuming celebi DOESNT have life orb though ) with sandstorm up, letting you OHKO it with Megahorn.
Now with Rhyperior/Gyarados AND metagross as set up sweepers, you DO NOT need DDmence, what you do need is a way to "crack stall wide open" as smogon puts it. Change DD mence to one of the two "mixmence" sets since he makes one of the best wallbreakers in the game. Now despite having gyarados and Salamence ( both SR weak pokemon ) whats good is that neither of them is affected by Spikes or toxic spikes, which is mence's advantage over infernape as a wallbreaker against stall.
Whew, thats it for now.