http://www.smogon.com/dp/pokemon/metagross
After testing this set out, I can say it brings an element of surprise and can actually deal with some of the dangerous threats in OU due to its bulky and incredible attack. The EV's may need some tweaking and I'm not sure the proper order of the DMG calculations, so I will take some advices.
________________________________________________________________
[SET]
name: Sleep Talk
move 1: Meteor Mash
move 2: Earthquake / Ice Punch / Thunder Punch
move 3: Rest
move 4: Sleep Talk
item: Leftovers
nature: Impish
evs: 252 HP / 16 Atk / 165 Def / 65 SpD / 12 Speed
[SET COMMENTS]
<p>Metagross has an outstanding base 130 Def and this "Iron Leg Pokemon" can easily manage attacks thrown at it with its handy resistances to Ice, Rock and Dragon and kick off the opposition with its base 135 Atk. On top of that, this set gives Metagross a recovery move, which Metagross totally lacks. Furthermore, it has access to the ability Clear Body so Intimidate users such as Salamence and Gyarados are futile. This set has its advantages over some rest talkers and it can combat with the other threats in OU.</p>
<p>This set has its disadvantages because you are limit to two attacking options in exchange for a recovery move. Meteor Mash is your obligatory STAB move which allows you to battle with Tyranitar, Salamence, Weavile, Mamoswine and Aerodactly respectively. The second slot is always a difficult choice which gives Metagross a better type coverage. Earthquake allows you to hit opposing Steel-types and hit Water-types (except for Gyarados) for neutral damage. Ice Punch lets you brawl with Gliscor and Salamence easier while Thunder Punch allows you to hit bulky waters and combat with Gyarados relatively easier. The third slot gives Metagross the healing move it desires and helps you replenish health from previous beatings. Sleep Talk is the magic of this set because this beast can fire off attacks with a Base 135 Atk while its asleep. Explosion is another option in the second slot, but it defeats the purpose of this set.</p>
<p>The EV spread may look complicating but its purpose it to handle hits thrown at it from the opponent. Sporting at 370 Defense, Metagross can cushion attacks thrown at it and can manage to come in on the common attacks such as Outrage from Salamence and Stone Edge from Tyranitar. 65 SpD gives it bulk from the special side to manage attacks thrown at it. The 12 EV's allow you to outspeed 80 Speed EV Tyranitar, scoring a OHKO with Meteor Mash before it hits you. The 16 remaining EV's are dumped into Attack to give Metagross extra power. To demonstrate the bulk of this set here are some calculations:</p>
<ul class="damage_calculation">
<li>24 SpA Naughty Salamence + Life Orb Fire Blast vs 252 HP / 65 SpD = 70.88% - 83.52% (2HKO)</li>
<li>232 Atk Naughty Salamence + 1 Dragon Dance + Life Orb Earthquake vs 252 HP / 165 Def = 83.52% - 98.35%</li>
<li>232 Atk Naughty Salamence + 1 Dragon Dance + Life Orb Outrage vs 252 HP / 165 Def = 37.09% - 43.96% (Clean 3HKO)
<li>252 Atk Adamant Lucario + 1 Swords Dance + Life Orb Close Combat vs 252 / 165 Def = 86.81% - 102.47% (15.38% of OHKO</li>
<li>252 Atk Adamant Tyranitar + Choice Band Stone Edge vs 252 HP / 165 Def = 37.91% - 44.51%</li>
<li>252 Atk Tyranitar + Choice Band Crunch vs 252 HP / 165 Def = 50.55% - 59.62% (80.67% of 2HKO w/ Leftovers)</li>
<li>0 Atk Jolly Gliscor Earthquake vs 252 HP / 165 Def = 37.91% - 45.05%</li>
<li>252 Atk Adamant Gyarados + Life Orb Waterfall vs 252 HP / 165 Def = 47.80% - 56.32% (25.44% chance of 2HKO w/ Leftovers)</li>
<li>252 Atk Adamant Gyarados + Life Orb Earthquake vs 252 Hp / 165 Def = 79.67% - 93.96% (2HKO)</li>
<li>252 SpA Naive Magnezone Thunderbolt vs 252 HP / 65 SpD = 50.27% - 59.34%</li>
</ul>
<p>This set has a recovery move but in exchange its limited to two attacking moves. This means the second slot has a different counters for each move. Earthquake is easily countered by Gyarados and can set up in front of it. Skarmory can usually combat with Gyarados most of the time without Taunt. Rotom can manage with Bulky Gyarados a lot easier striking it back with a STAB Thunderbolt for a OHKO and can usually shrug of a +1 Waterfall. Zapdos can also wall you and Blissey or Snorlax can be of good service alongside Metagross to handle Zapdos. Skarmory can come in on this set with relative ease and Magnezone can come and trap Skarmory without Shed Shell and carve of its entire HP with Thunderbolt. If you opt to use Ice Punch in place of Earthquake or Thunder Punch, Steel-types in general can come in easily. Magnezone can come in on a golden oppurtunity if it can avoid an Earthquake and trap opposing Steel-types. If you choose Thunder Punch, this means Swampert can give you trouble. Celebi can usually handle Swampert the best, resisting 2 of Swampert's STAB move. This set in particular will always appreciate Stealth Rock to OHKO Salamence with Meteor Mash and beat Gyarados with Ice Punch with Stealth Rock down. Stealth Rock can turn 2HKO's to OHKO's.</p>
After testing this set out, I can say it brings an element of surprise and can actually deal with some of the dangerous threats in OU due to its bulky and incredible attack. The EV's may need some tweaking and I'm not sure the proper order of the DMG calculations, so I will take some advices.
________________________________________________________________
[SET]
name: Sleep Talk
move 1: Meteor Mash
move 2: Earthquake / Ice Punch / Thunder Punch
move 3: Rest
move 4: Sleep Talk
item: Leftovers
nature: Impish
evs: 252 HP / 16 Atk / 165 Def / 65 SpD / 12 Speed
[SET COMMENTS]
<p>Metagross has an outstanding base 130 Def and this "Iron Leg Pokemon" can easily manage attacks thrown at it with its handy resistances to Ice, Rock and Dragon and kick off the opposition with its base 135 Atk. On top of that, this set gives Metagross a recovery move, which Metagross totally lacks. Furthermore, it has access to the ability Clear Body so Intimidate users such as Salamence and Gyarados are futile. This set has its advantages over some rest talkers and it can combat with the other threats in OU.</p>
<p>This set has its disadvantages because you are limit to two attacking options in exchange for a recovery move. Meteor Mash is your obligatory STAB move which allows you to battle with Tyranitar, Salamence, Weavile, Mamoswine and Aerodactly respectively. The second slot is always a difficult choice which gives Metagross a better type coverage. Earthquake allows you to hit opposing Steel-types and hit Water-types (except for Gyarados) for neutral damage. Ice Punch lets you brawl with Gliscor and Salamence easier while Thunder Punch allows you to hit bulky waters and combat with Gyarados relatively easier. The third slot gives Metagross the healing move it desires and helps you replenish health from previous beatings. Sleep Talk is the magic of this set because this beast can fire off attacks with a Base 135 Atk while its asleep. Explosion is another option in the second slot, but it defeats the purpose of this set.</p>
<p>The EV spread may look complicating but its purpose it to handle hits thrown at it from the opponent. Sporting at 370 Defense, Metagross can cushion attacks thrown at it and can manage to come in on the common attacks such as Outrage from Salamence and Stone Edge from Tyranitar. 65 SpD gives it bulk from the special side to manage attacks thrown at it. The 12 EV's allow you to outspeed 80 Speed EV Tyranitar, scoring a OHKO with Meteor Mash before it hits you. The 16 remaining EV's are dumped into Attack to give Metagross extra power. To demonstrate the bulk of this set here are some calculations:</p>
<ul class="damage_calculation">
<li>24 SpA Naughty Salamence + Life Orb Fire Blast vs 252 HP / 65 SpD = 70.88% - 83.52% (2HKO)</li>
<li>232 Atk Naughty Salamence + 1 Dragon Dance + Life Orb Earthquake vs 252 HP / 165 Def = 83.52% - 98.35%</li>
<li>232 Atk Naughty Salamence + 1 Dragon Dance + Life Orb Outrage vs 252 HP / 165 Def = 37.09% - 43.96% (Clean 3HKO)
<li>252 Atk Adamant Lucario + 1 Swords Dance + Life Orb Close Combat vs 252 / 165 Def = 86.81% - 102.47% (15.38% of OHKO</li>
<li>252 Atk Adamant Tyranitar + Choice Band Stone Edge vs 252 HP / 165 Def = 37.91% - 44.51%</li>
<li>252 Atk Tyranitar + Choice Band Crunch vs 252 HP / 165 Def = 50.55% - 59.62% (80.67% of 2HKO w/ Leftovers)</li>
<li>0 Atk Jolly Gliscor Earthquake vs 252 HP / 165 Def = 37.91% - 45.05%</li>
<li>252 Atk Adamant Gyarados + Life Orb Waterfall vs 252 HP / 165 Def = 47.80% - 56.32% (25.44% chance of 2HKO w/ Leftovers)</li>
<li>252 Atk Adamant Gyarados + Life Orb Earthquake vs 252 Hp / 165 Def = 79.67% - 93.96% (2HKO)</li>
<li>252 SpA Naive Magnezone Thunderbolt vs 252 HP / 65 SpD = 50.27% - 59.34%</li>
</ul>
<p>This set has a recovery move but in exchange its limited to two attacking moves. This means the second slot has a different counters for each move. Earthquake is easily countered by Gyarados and can set up in front of it. Skarmory can usually combat with Gyarados most of the time without Taunt. Rotom can manage with Bulky Gyarados a lot easier striking it back with a STAB Thunderbolt for a OHKO and can usually shrug of a +1 Waterfall. Zapdos can also wall you and Blissey or Snorlax can be of good service alongside Metagross to handle Zapdos. Skarmory can come in on this set with relative ease and Magnezone can come and trap Skarmory without Shed Shell and carve of its entire HP with Thunderbolt. If you opt to use Ice Punch in place of Earthquake or Thunder Punch, Steel-types in general can come in easily. Magnezone can come in on a golden oppurtunity if it can avoid an Earthquake and trap opposing Steel-types. If you choose Thunder Punch, this means Swampert can give you trouble. Celebi can usually handle Swampert the best, resisting 2 of Swampert's STAB move. This set in particular will always appreciate Stealth Rock to OHKO Salamence with Meteor Mash and beat Gyarados with Ice Punch with Stealth Rock down. Stealth Rock can turn 2HKO's to OHKO's.</p>
