Hello guys! In this guide I will tell you about special Karthus build! If you use it, you will deal TONS of damage to an enemy team!

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1st steps (lvl 1-5)

In the begining you have to play passively until lvl 6. That why you have to take Doran's Ring and one Health Potion (price 510gold). 1st of all farm creepss and DON'T push your lane! Then you can harrass your opponent. Don't be afraid of ganks because you have Flash and Wall of Pain! Try to reach lvl 6 as fast as you can.

You are lvl 6 now

1st thing you have to do is enjoying Requiem. Farm is your main priority BUT you have to help other lines with your OP ultimate! When your teammates engage, press R! When your teammates retreat, press R! When you want to press R, just press it! Don't forget to pay attention to other lines.

How to make team-fight

1st of all just press Defile and Flash into an enemy team
2nd Let enemy's Jarvan IV use Cataclysm on you. The end! You have scored Penta Kill!!!
If there are no Jarvan IVs in their team take care of your team pick him!
There are still NO Jarvan IVs over there? You can leave (best way) or play with out him(Extremely dangerous)

PROS

-Guaranteed more than 1100AP
-Incredible damage
- Revive allows be alive at any time
-You can troll!
-After 40min the game is yours

CONS

-You are TOO squishy
-Build is EXTREMELY expensive!!!

For runes you must take some Magic penetration ( Greater Mark of Magic Penetration / Greater Glyph of Magic Penetration )!
Also you need huge gold income so Greater Seal of Gold and Greater Quintessence of Gold are going to deal with it
Different ways:
Of course you can take Magic penetration ( Greater Mark of Magic Penetration ) and Ability Power ( Greater Seal of Ability Power , Greater Glyph of Ability Power , Greater Quintessence of Ability Power ) runes
And you can choose cooldowns reduction runes ( Greater Glyph of Scaling Cooldown Reduction )

Intelligence and Sorcery will give you some cooldowns reduction(total 10%), Mastermind will give -15% cooldown on Revive ( extremely important ).
You need Magic penetration Arcane Knowledge .
Greed and Wealth improve your income.
Of cource Expanded Mind and Meditation are going to be picked.
Good Hands are 3 points so instead of Good Hands you can take Awareness / Sage . But i prefer Good Hands !

ITEMS DO STACK

You started with Doran's Ring. Then you will buy Sorcerer's Shoes or Ionian Boots of Lucidity for more Magic Penetration or Cooldown Reduction. 3rd item is Rod of Ages for survival. After your 1st staff ( Rod of Ages) you have to buy Tear of the Goddess (start stack it immediately) and Rabadon's Deathcap. Now you have problems with tanks but you will solve it with buying Void Staff. Of cource you can try to play with out Void Staff to save your Sorcerer's Shoes. You will save some mobility and good penetration!. And now STACK 4 Archangel's Staff. THEY WILL CRY!
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LeBlanc She is too fast... And she can silence you with Sigil of Silence
Veigar Stun ----> 1shots with Primordial Burst
Banshee's Veil passive -.-
Sivir "activate hero shield" Spell Shield
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Jarvan IV is your best friend ever! His Cataclysm can help you a lot!
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Do you think that Soraka is counterpick??? YOU ARE TOTALY WRONG!!!!!!!!

I'm alive BABY

Why am i using Revive?

Revive will give you an ability to use Requiem after Karthus's death. And you will be able to use all 7second of Death Defied to deal more damage! Revive has HUGE cooldown so you must use it carefully.

Another combinations

1) Revive and Smite For pro junglers only!!!
2) Flash and Ignite Standart.
3) Cleanse and Flash I dont want to be silenced or stunned!
4) Flash and Heal You know turtles are... Never mind. (Safety)

Laying Requiem

Lay Waste and Requiem is your main spells! Wall of Pain is defensive spell. Defile helps you with dealing more damage and restoring your mana.
You can go and die from tower and use Revive to acquire a bit more health.

I was killed in teamfight

If you was KIT you will have 7 seconds to deal more damage. Then use Revive and press R. Watch for results. Are they dead? You are good Karthus. Are they NOT dead? Too bad... You have to practice more!

You are OP AP carry dealing Tons of damage! Remember there are no easy ways to win! you will carry your team or you will be carried by your team! Good luck and have fun!!!