Updates
0/21/9 to 9/21/0.
Better laning, able to be more aggressive in trades.
Runes
The reason i have gone with AD marks/quints is to fix Irelia's only weak phase. Laning. The AD marks/quints synergize quite well with her 
Hiten Style. The MR blues are for late game tankiness and the armor yellows are for the early game tankiness against top lane, which most of the time ends up being an AD.
Masteries
These masteries focus on being the intiator for the team. The movement speed when above 70% hp is great for starting fights and also makes you able to chase the squishies. The final point in the defense tree makes you an unstoppable train, the final point + Mercury Treads + 
Ionian Fervor = 2 STRONK. The 9 in utility,
Runic Affinity
is also good for red buff. Sometimes you are better with red buff than your AD carry.
Items
I like to start with boots, 3 pots for the early mobility and sustain. In certain situations you will need to buy a 
Null-Magic Mantle, ex. 
Akali
Rumble. In other cases you may need to buy Cloth armor and 5 pots, to upgrade to an early Ninja Tabi, ex. 
Renekton, 
Gangplank, 
Olaf, and 
Pantheon
Talon. The early 
Phage is great because of the early tankiness and damage. After getting that upgrading to either Mercury Treads/
Ninja Tabi is great. The 
Wit's End is one of the most important items on Irelia, building the MR from each attack and the attack speed + true damage from your W is just amazing damage. Getting the 
Giant's Belt after that will put you around 2.6k hp and you haven't even finish your 
Atma's Impaler 
Warmog's Armor/
Force of Nature. The AtMogs/FoN are also core items, both of these items give you 200-250 hp regen alone, that's without counting Hiten Style, and Wit's End.
Summoners
Flash: Gets you out of near death situations, secures kills, OP.
Teleport: Gets you to teamfights, gets you back in lane early game.
Other viable summoners:
Ignite: Good with Hiten Style not really my kind of thing, but if you want to win lane, always good, also good against high-sustain champions. ex. 
Yorick, 
Nidalee Olaf.
Exhaust: Good for some situations, able to fight with escape, and/or get that clutch kill with very little hp. Also good against those champs that can harass you hard. ex. Pantheon, 
Garen, Renekton.
Heal: Used for bait, pretty much it.
Tough Laning Partners
Akali: I suggest starting with Null-Magic Mantle and playing very passive. The only time you will most likely be able to kill her is at level 9, where all hell will break loose, and late game.
Rumble: Same as Akali.
Cho'Gath: Won't do anything to you, against Cho it's more of a farm game, but start 
Boots of Speed 3 pots if he lanes a Q while the jungler is ganking you, it won't end well.
Darius: This guy, holy ****, I really don't know how you beat him right now, as of now I start 
Regrowth Pendant . Try and stay passive early game, and you can get aggressive once you hit 9, try and get as much cs impossible, auto-attack as much as possible just so you don't die. Don't trade with him, only at 4 and don't do it often. If he has Ignite STAY PASSIVE. Get 
Philosopher's Stone and get Ninja Tabi . Also, when you're 6, watch your HP, he will kill you with 
Noxian Guillotine. Don't underestimate that.
Gangplank: 
Parrrley is dumb, can Scurvy your 
Equilibrium Strike. Start 
Cloth Armor 5 pots. Get Philosopher's Stone, and get Ninja Tabi.
Garen: Watch for 
Decisive Strike Silence, back when he has you low but not super low where he can walk up to you and 
Demacian Justice your face in.
Jax: Meh, just the 
Counter Strike dodge is dumb, may need to get 
Wriggle's Lantern, start Boots of Speed 3 pots.
Lee Sin: GAAAAAY. Just farm avoid fighting him unless you have a jungler or mid with you.
Malphite: His 
Ground Slam will slow your attack speed. Don't go toe to toe with him. Get wards before 6 because his 
Unstoppable Force and a jungler, you'll usually die.
Nasus: Make him waste 
Wither and your fine.
Nidalee: AP - 
Javelin Toss AAAAAAAHHHHHHHHHHHHH. AD - beat her pre 6, or kill her level 9, your choice.
Mordekaiser: HUEHUEHUEHUEHUEHUE, get boots dodge that ******ed E.
Riven: Unless she uses 
Valor to get to you, don't fight her. Get Cloth Armor and upgrade to Ninja Tabi.
Singed: May need a 
Spirit Visage/
Chalice of Harmony, try and auto attack as much as possible for the HP. Get Boots of Speed so you can out run him.
Teemo:
Blinding Dart, that's it.
Tryndamere: Harass him when you can. Deny him when you can. Kill him if he over extends or is reckless.
Yorick: Get Wriggle's Lantern, stay passive, you both can't kill each other, unless you screw up.
Warwick: He can kill you, you can't kill him unless he's ******ed. Go Boots of Speed]] 3 pots.
Xin Zhao: Cloth Armor get Ninja Tabi, make sure you get Phage as quick as possible.
Renekton: Don't ever fight him unless he wasted his second 
Slice and Dice and you have your Ninja Tabi, Phage, and Wit's End.
Wukong: Kill him early. Watch for those stupid decoys. Cloth Armor 5 pots.
Late Game
You should always be the intiator.
Focus AD carry push them out of the fight.
Kill ALL the squishies.
You'll be quite strong with the full build.
Q & A
If you have any questions about the build feel free to add me in game.
Summoner Name: TheGGongShow.
Any good Q&A will be posted below:
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Build Guide
Discussion (11)
Irelia, but if done right can you get the early kill and make you snowball out of control.
Sheen, they'll get chewed through.
