[Pros]
<p>
<ul>
<li> Ground immunity, Toxic immunity</li>
<li>Poison typing hits super effectively against Grass- and Fairy-types super effectively, and Infiltrator with new mechanics allows Crobat to damage opponents sitting behind a Substitute</li>
<li>Super fast Taunt</li>
<li>Decent defensive typing.</li>
</ul>
</p>
[Cons]
<p>
<ul>
<li>Needs to use super effective attacks to deal most of its damage</li>
<li>Weak to common attacking types such as Electric, Ice, and Rock.</li>
<li>Average defenses.</li>
</ul>
</p>
[Set Recommendations]
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<p>Crobat @ Leftovers<br />
Ability: Infiltrator<br/>
EVs: 120 HP / 136 Atk / 252 Spe <br />
Jolly Nature (+Spe, -SpA)<br />
- Brave Bird/Super Fang<br />
- Taunt<br />
- U-Turn/Toxic<br />
- Roost</p>
<p>Brave Bird is the main slash, allowing Crobat to pick off fragile Pokemon such as Greninja and Alakazam while Super Fang is Crobat's only way to deal with bulky Steel-types such as Skarmory, (comma) allowing it Crobat to beat it with a combination of Taunt, Super Fang and Roost.</p><p> The EV spread is optimal for Crobat, allowing him it to OHKO Alakazam, and (RC) Trevenant, (RC) and 2HKO specially defensive Tentacruel, (RC) and offensive Starmie and is better than full investment in bulk. You Crobat can also OHKO Greninja after a little bit of residual damage. However, if you do without forgo Brave Bird, you Crobat can use can go with a bulkier EV spread of 248 HP / 8 Def / 252 Speed.</p>
<p>Crobat @ Leftovers / Life Orb <br />
Ability: Infiltrator<br/>
EVs: 252 Atk / 4 Def / 252 Spe <br />
Jolly Nature (+Spe, -SpA)<br />
- Brave Bird<br />
- Defog<br />
- Roost<br />
- U-Turn</p>
<p>This set plays differently from the above set, attempting to remove the opponent's entry hazards and screens so that another team member can come in after a quick U-turn and wreck the opponent's team. This Crobat should not be brought in until the opponent's entry hazard users have been defeated.</p><p>Defog is the entire purpose of this set, so it is a must on the moveset. Roost recovers HP and rids Crobat of its Flying Rock-, Ice-, and Electric-type weaknesseses. Beware, though, as slower Ground-type moves will now be super effective on Crobat on the turn Roost is used. U-turn gains momentum, allowing you Crobat to damage the opponent a little bit and allow you to bring in a counter. However, Brave Bird is the primary offensive move and Crobat's best attack, allowing you Crobat to beat up the opponent's Pokemon with ease.</p>
[Checks and Counters]
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<p>Any Steel-type with decent defense will beat Crobat or force it out. Magnezone and Magneton come to mind immediately, as they are immune to Poison-type attacks, resisting U-Turn, quad 4x resisting Brave Bird, and can OHKO back with Thunderbolt, while not being afraid of Taunt. Mega Scizor and non-mega Scizor can outspeed with Bullet Punch and OHKO or 2HKO after a prior hit, depending on its state. Aegislash stops Crobat in its tracks as well.</p>
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<p>Repeated, unresisted, powerful attacks work well too. Heloptile can come in, especially when holding Choice Scarf, and OHKO Crobat with Thunderbolt. However, Heloptile takes a good chunk of damage from Brave Bird, and is therefore only viable as a revenge killer against Crobat. Barbaracle can come and force Crobat to U-turn away fearing with Stone Edge. Avalugg can take a hit from U-turn or Brave Bird with ease, (RC) and come strike back at the next poke with a double-powered Avalanche. Mega Alakazam can come in, outspeed, and revenge kill OHKO with Psychic or Psyshock. Rotom-W can also OHKO easily with its Thunderbolt</p>