Lagging Tail
<p>Although it may seem useless to make sure your Pokemon always moves after the opponent, Lagging Tail still has its uses. First, it allows users of the move Metal Burst to make sure they move last, since it will fail if the user moves before the opponent. It also helps the users of the move U-Turn, who can make sure that the Pokemon they are switching to won't get hit on its way in. Finally, Lagging Tail is an interesting item to Trick for slow Pokemon, such as Bronzong or Metagross, or simply to cripple fast and powerful sweepers.</p>
King's Rock
<p>While King's Rock is somewhat risky to use because of the low activation rate, it is very useful with moves that hit the opponent more than once, such as Rock Blast. If the move hits 5 times, the flinch rate hovers around 41%, making Pokemon with the Skill Link ability good users of this item. King's Rock may also be used in conjunction of the move Fling, since the target will always Flinch after the move is used, making it a pseudo Fake Out, which is useful for lead Pokemon. In most cases though, King's Rock is a very poor choice to use in any competitive environment.</p>
Scope Lens
<p>Scope Lens is an interesting item to give to Pokemon with the Sniper or Super Luck ability. Joining these abilities with Scope Lens and a high critical hit ratio move makes a deadly combination that often results in a critical hit. However, it is not seen much in competitive play, mostly because there are better items for a sweeper, most notably Life Orb and Leftovers.</p>
Smooth Rock
<p>Smooth Rock is generally overlooked as an held item due to the fact Hippopotas, Hippowdon, and Tyranitar have the Sand Stream ability, which summons permanent sandstorm. Even then, most of the Pokemon who benefit from sandstorm will want more than 8 turns to use it, and can't afford losing a moveslot to use the move Sandstorm, making Smooth Rock a poor item choice.</p>
Focus Band
<p>While it may seem useful at first, Focus Band is not a good item. Since it is so unreliable, the risk is too high for the payoff. Even then, the popularity of Tyranitar and it's Sand Stream ability makes it even worse, since sandstorm will make the surviving Pokemon faint. It is also largely outclassed by Focus Sash, even if it only works when the user has all its HP, the activation ratio is 100%, making it much more reliable.</p>
Passho Berry
<p>Passho Berry may look like a poor held item choice, however it has its uses. The most notable use is to lure in bulky Water-types with Heatran, avoid the KO using the Passho Berry, and then make them faint or at least severely dent them with Explosion. Other Pokemon that are weak to Water, such as Tyranitar, have better items or resist Berries to use, since they can't seriously damage most Water-types, which is the reason why Passho Berry is often shunned in favor of more useful items.</p>
Starf Berry
<p>Starf Berry is yet another item considered too gimmicky for competitive use, mostly due to the fact it randomly chooses the stat it will raise, making it very unreliable. While it may end up raising a useful stat, it may also raise a useless one. Since the holder's HP must be very low for it to activate, it is very difficult to use it again with Recycle. Since other pinch Berries, such as Salac Berry, are more reliable, Starf Berry is often left aside.</p>
Quick Claw
<p>Quick Claw certainly has an interesting effect, which helps many Pokemon revenge kill faster threats. However, it's outclassed by Choice Scarf as an item that allows you to move faster, mostly because of its unreliability. Even though it lacks the reliable quality of Choice Scarf, some Pokemon are simply too slow to use it, and are still outsped by a large portion of the metagame, making Quick Claw the superior choice. Even then, there are better held items to give to those slow Pokemon, such as Leftovers.</p>
Oran Berry
<p>In tiers capitalizing on level 100 Pokemon, Oran Berry is, in every way, outclassed by Leftovers and even Sitrus Berry due to these Pokemon having high HP stats. However, Oran Berry has a comfortable place in Little Cup, where unevolved level 5 Pokemon can instantly recover most of their lost health when the Berry is consumed. Because of this, Oran Berry is a solid staple item for both offensive and defensive threats. While there's no denying Leftovers is still a useful item for some Pokemon in Little Cup, Oran Berry heals a much larger amount of health at one time, potentially making 2HKOes into 3HKOes. For example, Bagon makes great use of Oran Berry due to maintaining its health (after consumption) and having a Dragon Dance boost ready, while Munchlax can instantly start a healing cycle after its health is restored.</p>
Grip Claw
<p>Grip Claw doesn't see much practical use in any given tier due to its situational effect. This item is particularly specialized for temporary trapping moves (i.e. Magma Storm and Whirlpool), which usually lack consistent reliability and power. On top of this, when you consider the 2-5 turn counter the moves already offer, Grip Claw doesn't contribute significantly to the user's health or offensive power, two factors which are arguably more valuable than a few extra turns of trapping. If you are considering using a temporary trapping move, keep in mind that there are better items to use in conjunction with it.</p>
Lucky Punch
<p>Seriously, don't even consider using this item competitively. The use of Lucky Punch requires Chansey to utilize its one of its two offensive stats, both of which are practically abysmal. The only offensive move Chansey would actually consider using is Seismic Toss, which is not affected by Lucky Punch due to its dependence on Chansey's level. On top of this, because of Chansey's defensive and supportive nature, it's better off using Leftovers, with which it can recover some lost health over time simultaneously with Protect, Wish, and Softboiled.</p>
Ganlon Berry
<p>Despite being part of the pinch Berry family, the Ganlon Berry will only activate with the wrong effect at the worst moment possible. Like the other pinch Berries, the Ganlon Berry requires the user's health to be well under 25%, which isn't exactly the best opportunity to boost your Pokemon's Defense. At this point, the user is in definite KO range, meaning that a Defense boost would be a wasted effort. Unless your Pokemon has some reliable way to recover health instantly, the Ganlon Berry should never be an option over staple items such as Leftovers.</p>