The coding should work as soon as Rengar is added to moba database.
Making this to add to my complete top lane guide.

Champion Overview:


Rengar is a Semi Tanky Assassin champion. Rengar has a very strong burst when setup well, he has good damage and if allowed to reach the enemy carry he can burst them down instantly. Rengar snowballs very well and he is one of the few top laners that can go reliably gank mid lane with his ultimate. Rengar has no mana cost and instead uses a ferocity system (Essentially Rage). Rengar's kit is very versatile and he can max different skills to fit his enemies and situations. Rengar has a very strong low level burst and it is not uncommon for him to easily pick up first blood.

Skills Overview:


(Passive) Unseen Predator- While in brush or stealth Rengar will leap at the target when using his basic attack. Also Rengar builds 1 point of Ferocity with each ability he uses on enemies. When reaching 5 points of Ferocity, Rengar's next ability becomes empowered, granting it a bonus effect.

This is a dual passive and in full honesty both passives feel very good, very strong, and play a very big role in mastering his kit. His first passive is that he can jump on an enemy if he is in a brush. This passive acts as a gap closer that will make running through brushes to chase after enemies a profitable idea, this also allows you to wait in brushes to easily ambush enemies as they pass by and catch them by surprise. Now the other part of your passive essentially gives you a fury bar that does not go down and gos up 20% every time you use a skill. When the bar reaches max you get access to the "Ferocity skillbar", which holds all your ferocity skills. These will all be off CD REGARDLESS of whether the normal skill was on CD (Ie: You used your Q to finish filling your bar, you can instantly use it AGAIN for another Q!)


Q Savagery- Rengar's next basic attack deals 30 / 55 / 80 / 105 / 130 (+1.0 per attack damage) bonus damage and grants him 30 / 35 / 40 / 45 / 50 % increased attack speed. Ferocity Bonus: (Empowered Damage: 30 / 55 / 80 / 105 / 130 (+2.5 per attack damage)) Additionally deals 150% of Rengar's Attack Damage in bonus damage, and the Attack Speed bonus is doubled. Cooldown: 6 seconds.

What I compare this to is a Renekton stun as far as damage is concerned. This skill is also your steroid to allow you to fight better for a few seconds after you use your Q.
Note:This skill resets auto attack timer, so a really good way to use this burst is to auto-Q (When you have 80% of your gauage filled)-auto-Q.

W Battle Roar- Rengar lets out a battle roar, magically damaging enemies (75 / 120 / 165 / 210 / 255 (+1.0 per ability power)) and gaining 20 / 30 / 40 / 50 / 60 bonus armor and magic resist for a short duration. Ferocity Bonus: Heals Rengar for 15% of his max health. Cooldown: 15 / 14 / 13 / 12 / 11 seconds.

This skill is your commited trade skill and sustain. This skill gives you a good amount of Armor and MR as well as dealing some decent trade damage (The damage is MAGICAL, so enemies who are stacking armor will still take a decent amount of damage from this skill). The ferocity version of this skill will act as your main sustain in between fights and trades AS WELL AS a bait mechanic for trading.


E Bola Strike- Rengar throws a bola at his target dealing 60 / 105 / 150 / 195 / 240 (+0.7 per bonus attack damage) Physical Damage and slowing them by 50 / 55 / 60 / 65 / 70 % for a short duration. Enemy Movement Speed recovers over 2.5 seconds. Ferocity Bonus: Roots the target for 1 second. Cooldown: 12 / 11 / 10 / 9 / 8 seconds.

This skill is your CC tool to respond to ganks, BUT it also has another use, a ranged harassment tool. This skill will allow you to do very well in lanes vs a champion with low sustain.


R (Ultimate) Thrill of the Hunt Rengar activates his predatory instincts, stealthing and revealing all enemy Champions in a 2000 / 3000 / 4000 range radius around him. He gains 10 / 15 / 20 % movement speed and generates 1 Ferocity per 0.75s while stealthed. Lasts 7 seconds or until he uses an ability. Cooldown: 120 / 80 / 40 seconds.

This ultimate is EXTREMELY AMAZING. This has so many purposes and is the skill defining difference in Rengars. This skill can be used to escape an ganks, be used as a "Timeout in a fight to get your Ferocity, A gapcloser, a tool to find enemies, and a tool to gank enemy lanes if you roam.

Combos/Skillorder:


Skill Order Will Appear Once Rengar is added to the database

Skill Order:
Ability Sequence
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Use this max if you are in a standard lane.
Ability Sequence
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Use this max if you are in a lane where your enemy is as strong or stronger then you in a close up fight.
Combos:

(R for the kill or Be in a brush)- (Have 4 stacks of rage before you fight)-Q-Q-E-W-Q

Burst example done on Nasus Bot


Bola Poke

Burst example done on Nasus Bot

General Matchups:

Easy

Nidalee (The brush hath turned against her)

Garen (Bola spam. Win Lane.)

Akali (If you get 2 Qs in when she comes at you, you will typically out trade her.)

Cho'Gath (Poke him down with all your burst and Bola)

Nasus (Abuse your strong early and his weak early.)
Hard

Fiora (Blocks all of your Q damage. If shes able to stop one she gimps your fighting power hard.)

Yorick (Hes Yorick did you think you'd stand a chance?)

Jax (He can dodge you 2x Q combo -.-)

Irelia (Stacks armor... Doesn't Die.... Does Tons of Damage(Tm))

Malphite (So... much.... armor.....)

In Depth Matchups:


-Pending Videos(Somethings wrong with my LolRecorder Atm)-

Playing AS/VS:

As:
  • Try and push your lane to go roam, filling your necklace is a high priority
  • Don't push out unless you have your ultimate, ganks will murder you without it.
  • Utilize your passive whenever possible. In lane it prevents some of the enemies counter harass.
Vs:
  • Avoid the brush.
  • Always expect Rengar to be there if you are low.
  • Avoid rengar while he has full/close to full ferocity.

Big Item Choices::


Bonetooth Neclace- The Values on this item are actually pretty good and it is very good if you are able to get some stacks.

Trinity Force- Gives you more Q damage, a slow on your most devistating combo, and more MS. <3

Bloodthirster- More sustain and damage off of your Q (Main skill)

Last Whisper-Armor Pen if the enemies stack armor.

Maw of Malmortius- Strong item vs an ap laner/Ap heavy team.

Youmuu's Ghostblade- The brutalizer gives you CDR and damage in lane. The full item gives you a nice active for when you go predator mode.

Gametypes:

SoloQ:

Rengar is a stomper in soloQ. He has an item that just screams snowball, an ultimate to let him roam around and use her stuffed stomach, and a reliable escape from ganks.
Ranked 5s:

Rengar is not much of a ranked 5s champ, but that is not to say he can't be used there. He is like Darius or Garen in that he needs his team to cater to him, he cannot cater to the team.

Pros and Cons:


Pros:

-Strong Lane.
-Versatile Max order.
-Sustain.
-Safe.
-Burst Damage.
-Unique stacking item.
-Stealth.
-No mana.

Cons:

-No CC.
-Relativity Squishy.
-Gap closer is unreliable at times.
-Low mobility.

Conclusion:


This is my top facts Rengar. Rengar is currently thought of as UP on the forums and other places. I think that is just due to the fact people have not learned him yet as I think he is decently strong. As always summoners have fun and good luck on the fields of justice!