Hello, this is ACRONYM
This is my first guide. Hope you like it, things will be added and tweaked in the future.
Thanks so much for looking at my guide.
Krul is one of the hardest heroes to counter in the game.
This guide hopefully will show you a Krul that will be extremely hard to take down.
The first guide is inspired by ShizzleMyNizzle and other players, but the second is a little different one that I came up with.
Enjoy
-ACRONYM

Shadows Empower Me

Ability Breakdown: When Krul is still in the brush (bushes) for 1.5 seconds, he gains temporary move speed and his next basic attack will slow the enemy
Purposes: Useful for ganks and ambushes
If possible, allows for an easy escape because of the slow

Dead Man's Rush

Ability Breakdown: Charges and attacks a targeted enemy, granting a health barrier. Has a weapon ratio.
Purposes: To start a gank and/or ambush, and to engage on enemies.

Spectral Smite

Ability Breakdown: Passively have each basic attack stack on the enemy, 8 stacks maximum. Each stach reduces crystal power and attack speed of the enemy and increases your lifesteal against them. When activated, detonate the stacks and deal damage based on those stacks. Also heals you based on the damage dealt.
Purposes: Sustaining a fight in your favor.
Dealing high amounts of damage.
Healing you.

From Hell's Heart

Ability Breakdown: The sword is thrown at enemies, stunning them based on the distance the sword has
gone, and slowing them. This ability also deals damage.
Purposes: To finish off weak or fleeing enemies.
To give yourself a head start on enemies.
To kite enemies away from you

If you are the laner -- Pick up busrt items, like Aftershock or Tension Bow, or pick up heavy damage dealing items, like a Shatterglass or Sorrowblade. Stay as far away from him at all times, and try to kite him and poke him.
If you are the jungle carry -- Also, either pick up burst items or heavy damage dealing items. Burst him down if possible, but avoid him for prolonged periods of time. Deny him farm early! That is the most important. without much money, this build will not work.
If you are the tank/support -- There is not much you can do. If playing with friends, let them know what to do, but if you are in Solo Queue, there is not much you can do. You can be agressive, but then your team will not have a tank/support.

If you are the laner -- Build more defense than normal and pick up an Aegis as one of your items. Burst him down faster than he bursts you down and you will be fine. Or, you can just focus on offense and completely destroy him.
If you are the jungle carry -- Same with the laner, busrt him down faster than he can burst you down, or if you are a sustain hero, build more defense. Deny him farm early, as he has an expensive build.
If you are the tank -- It will be diffucult to burst you down, so you are fine as is. Just avoid him without a teammate.

Farm! Your priority early to midgame is farm, and still you should farm some late game. This build will not work if your other jungle member take CS from you. Pick up consumables often, especially Halcyon Potions early to Midgame. Make sure if there is an enemy Taka to buy flares and Scout Traps ad use them in strategic locations. (Kraken/Gold Mine Pit) Avoid invades with the enemy Taka early by replacing your 2 Halcyon Potions with 2 flares, or 1 Scout Trap. Avoid 1 vs 2 at all costs! Unless the enemy is very weak, make sure to avoid them. Your are very vital to your team.

Engage when your abilities are up, and if you find yourself running low on energy, consider oicking up a Void Battery. Gank often, and wait for your passive to activate. Start your gank with Dead Man's Rush, then activate your Shiversteel. Spectral Smite early to get the kill secured.
Beware of burst builds and stuns. Those are your weaknesses. Target Taka and/or Joule in teamfights, then the Krul, then the laner. Beware of Koshka's Ultimate, especially when she is with allies and in teamfights. Pick up and build into something with a reflex block if the enemy team has stuns. Counter build with defense if needed, say if one enemy has high WP, pick up a Metal Jacket.
Follow these tips and your time playing as Krul in the Halcyon Fold will be a great one.

Farm! Your priority early to midgame is farm, and still you should farm some late game. This build will not work if your other jungle member take CS from you. Pick up consumables often, especially Halcyon Potions early to Midgame. Make sure if there is an enemy Taka to buy flares and Scout Traps ad use them in strategic locations. (Kraken/Gold Mine Pit) Avoid invades with the enemy Taka early by replacing your 2 Halcyon Potions with 2 flares, or 1 Scout Trap. avoid 1 vs 2 at all costs! Unless the enemy is very weak, make sure to avoid them. Your are very vital to your team.

Engage when your abilities are up. Gank often, and wait for your passive to activate. Start your gank with Dead Man's Rush. Spectral Smite early to get the kill secured. Your Frostburn will slow them enough to get the kill.
Beware of stuns. That is one of your weaknesses, along with tanky heroes that can have a good damage output. Beware of Koshka's Ultimate, especially when she is with allies and in teamfights. Pick up and build into something with a reflex block if the enemy team has stuns. Counter build with defense if needed, say if one enemy has high WP, pick up a Metal Jacket.
Follow these tips and your time playing as Krul in the Halcyon Fold will be a great one.

You should end up with a good KDA and be a vital member of your team. Any comments, questions, concerns, or suggestions please fell free to leave in the comments.
Bye for now
-ACRONYM