hecarim became a go to champion in many years so you'll see why

standard rune pages against ad champions is shown here but change to flat mr blues if they have 2 or more ap in the enemy comp.
reds: early game dmge good for ganking and clearing. *burst champion compliments ad* why not lethality and scaling ad?? survive your early game is the hardest part, dont forget it.
yellows: obviously camps deal physical dmge
blues: cooldowns great to not abuse cooldowns but if ap comps go for flat mr
quints: passive jumpstart

item stats needed for hecarim:
- health
- armor
- mr
- cooldowns (max 40%)
- burst AD items
- compliments movement speed

max q 1st for early game dmge output.
max e 2nd to compliment in the passive.

note to ultimate: it cannot disturb by cc while casting it

ghost : passive
flash : for different enemy comp that demonstrates pathing delays ( anivia wall, taliyah wall, etc)
smite : obviously jungler

solo queue : jungler's to go to.. good for climbing
pro play : ignored because of its lone wolf kit

pros:
-burster
-tanky
-movement speed relative gameplay
-omnivore
-mid game jungler's wet dream
-gank grade : A (enemy can escape through flashes and pathing skills skills)
-janitor (at its greatest in cleaning up fights)
-zoner
cons:
-abusive early game
-destroyed in pathing delays
-slows destoys his dmge output
-mana sustain if noob

there are many ways to route this champion. it must depend on the situation in every game
but in ganking:
top - basic to gank
mid - manipulative play for counter ganks and pressure plays
bot - 2v2 in one lane is complicated that demands teamwork and skirmish gameplay.

things to do to be useful in the team:
-zone out enemy dmge output
-tank dmge
-cleanup teamfights
-burst enemy

dmge all works with your passive thats why you can build tanky while your damge output is great. thats why this champion is tanky burst.

you are a omnivore
omonivore: clear camps to build up yourself.

many guides that elaborate this champion. my guide is to make clear description of what this champion do and purpose in the game

vote and comment for me to improve