Laught if you want, that's why it works anyways.
LONG POST IS LONG
The first all-tier lead in the history:
Delibird (F) @ Focus Sash ** DECEMBER 25
Trait: Vital Spirit
EVs:
160 Atk / 96 Spd / 252 SAtk (Option A)
80 Atk / 176 Spd / 252 SAtk (Option B)
4 HP / 252 Atk / 252 SAtk ("Pure Power")
Option A: Outruns Neutral Max speed relicanth (For late game), marowak, Cacturne, Gorebyss and other slow pokemon. Also outspeed min. speed 85 base and less
Option B: Outruns +Nature Max speed relicanth (For late game), Marowak, Cacturne, Gorebyss, Abomasnow and other slow pokemon. Also outspeed min. 95 base and less.
Pure power: Deals the most damage delibird can do with Ice shard.
Customize: You MUST maximize special attack and use a +Spc atk nature but other than that you can customize your Delibird depending on the tier you're playing because, as you may see, option A and B are most useful in NU, while at first glance Pure power seems better for UU and OU, however, you mat put some speed to outrun the pokemon you want (if it's in Delibird's range of speed of course)
Mild Nature (+SAtk, -Def)
- Hidden Power [Grass] / [Flying]
- Ice Shard / Counter
- Ice Beam
- Rapid Spin / Counter
NU and UU: You may want to run Hidden grass over Flying and Rapid spin or counter it's situational, but counter helps in NU.
OU: Here Counter it's a lot more useful but it's hard to see what attack to replace. Hidden flying still being the second option.
Who could say the, according to the analysis, worst rapid spinner EVUR could use it?
Like 2 or 3 days ago I was looking for a lead who could work on OU, UU and NU while being NU as it's the style of play I play (I erase any team I create if it only work in one or two tiers) and ended... with this as the best possible option.
Why should I use delibird:
+Most people understimate him and set up first turn. Sure dead to many, many leads
+Vital spirit prevents Breloom (OU) Roserades (UU) and Jumpluff (NU) leads, all of them are easily killed by Delibird anyways.
+Coolness points.
+Some leads can't do anything to delibird.
NU LEADS:
-Butterfree: 1HKO Ice beam
-Cloyster: 2HKO with Hidden power grass. TS and Spikes can be spin away after kill (if the foe send out a slower pokemon OR a faster one and you still have your sash (most of the time))
-Relicanth: Hidden power grass OHKO most of the time 4 hp 0 s.def, max hp are 2hko'd, same max hp max s def most of the time.
-Gligar: Ice beam OHKOs, if they have, for some reason, sash you can rapid spin for the kill and clean the field.
-Veeomoth: Hidden power Flying 2HKO but leaves venomoth in Ice shard range, meaning that you will win always if you run those attacks.
-Jumpluff: Jumpy just doesn't stand a chance.
Attack me, or else you will DIE (CD-I reference): Floatzel (Hidden grass, they set up rain first turn almost always), Pinsir (Ice beam 2hko, Hidden flying 2hko but leaves him in Ice shard range SOMETIMES, only works in "Pure power" EVs distribution, most of the time they set up rocks first (unless they have seen delibird before)), Venomoth
UU LEADS:
-Roserade: Sadly Ice beam never OHKOs, however, you can finish it off with Ice shard without problems. Pray for not being poison-haxxed (Funny how the delibird user can relie on delibird, but the other one must relie on hax to beat him)
-Crobat: Most of the time it is 2hko'd, however, it may be 1hko'd sometimes. Finish it off with Ice shard also.
-Yanmega: Finally a 100% OHKO :D if Sash'd just use Ice shard.
Attack me, or else you will DIE: Electrode (2HKO the rain-set up with Ice beam)
OU LEADS:
-Metagross: This is why Counter is an option. It requres being an extreme hardcore good player (Well, not that badly) You have to predict if your oponent is going to set up rocks the first turn or bullet punch. If you predict the bullet punch you just got a OHKO. Without Counter you can't do anything anyways to him.
-Swampert: Hidden grass 2HKO the 240 HP / 216 Def / 52 SpA Relaxed from the analysis It need to almost max. it's spc def for being 3hko'd.
Most of the time, when Swampert realises it's going to lose to a delibird it switch (first turn they set up SR) so you just can spin away them and got the momentum or whatever it's called.
-Aerodactyl: For many people the most annoying lead (as scarf breloom can't outspeed, for example) however it's the first OU lead (or second, if you count swampy) that it's killed 100% of the time. Just ice beam the first turn and if it SE/Rock slide ice shard, if it SR ice shard (not using the sash) or spin away the rocks (killing it but, most of the time, losing the sash) depends on you.
-Ninjask: Another good scenario for Delibird, pretty much like Aerodactyl but here you have to predict a bit more. If ninjask decides to subs 2 times (50% lost) you can finish it off with Ice shard if you run the Pure Power delibird. With other EVs you will have to wait 3 subs for the kill. It's the first scenario where the EVs really, really matter
-Smeargle: 2HKO'd by ice beam.
-Gliscor: See "Gligar" in "NU LEADS", another win-win situation.
-Breloom: 1HKO'd, only wins if it run sash (pointless for standard), attack the first turn and the second one mach punch, as it outrun.
Attack me, or else you will DIE: Azelf (Ice beam 2hko, if it decides to set up rocks you win), YacheMence, Celebi (Ice beam 2hko, if it decide to set up rocks you win, again), Infernape (Only with Hidden power flying, same as the others, pray for not being fake-out'd), Hippowdon (Ice beam 2hko. Stealth rock set up = dead), Mamoswine (Life orbSwine if set up SR first it's 2hko'd by ice beam factoring life orb damage (as it ice shard)
Attack me and you will DIE: (Counter deads) Mamoswine, Metagross, BP Scizor, Any-physical-attack Lucario, Gyarados (Pray for not being flinchhax'd or not fighting a subs variant)
DELIBIRD CAN'T BE THAT GOOD, ISN'T IT?
That's right even if the list of leads you beat it's huge and he's kinda-reliable in all the tiers, there's some leads you just CAN'T beat.
O NAOZ I CANT BEAT: Uxie, Jirachi, Bronzong, Tyranitar, Heatran, Abomasnow (Without HP Flying (Or a bizarre fire, lol), Togekiss (Most of them T-wave the first turn and can just wait until you parahax to kill, Fake-outs (Ambipom, Persian, Purugly, etc. Only without protect + Counter combo), Entei.
OPINION
Delibird is, indeed, a novelty unexpected pokemon. It relies on the oponent understimating him as some of the kills you got relies on the oponent setting up Stealth rocks/rain/whatever but, of course, there are some kills you can get without relying on set ups. It's not the perfect lead (because a "perfect" one depend on the tier) but it's kinda close, lol.
OTHER OPTIONS
While it movepool it's poor and shared by most pokemon, LeadLibird can make well use of them:
Protect can help predicting (even if you "misspredict" (For example, you protect against SR metagross, then you counter as it will bullet punch)) and fuck up fake out playing it with counter.
Icy wind can be used instead of Ice sahrd. It helps in NU lowering leads speed while doing some damage, for example, with icy wind + Ice beam combo you always leaves extremly weak Pinsir in NU. Icy wind + HP flying kills it.
Blizzard It's the stronger and way less reliable option for ice beam, hwoever, it transform some (many in fact) 2hko in Blizzard+Ice shard KO.
Toxic is reliable in most pokemon and delibird it's one of those pokemon. It works specially against Uxie, Togekiss and T-tar
Brick Break works against T-tar, sadly, it's a 3hko using "pure power" EVs (unless you run Hustle, wich means you may fail and you're open for Breloom's spore)
Hustle Even if it isn't an attack it may work if you want some more power. Specially in OU as the most common sleep-leads are just 2, breloom and roserade. Leaving yourself open to sleep ísn't good anyways (Breloom, venomoth, butterfree, Persian, Purugly, Yanmega, etc can beat you)
COUNTERING DELIBIRD
I love Delibird but it's defences sucks and "LeadLibird" isn't the fastest guy around. Most of the time he relies on the foe setting up (specially in NU) so when facing LeadLibird... don't f-cking laught and ATTACK IT, no mercy to the penguin or else you're gonna regret it, seriously.