“You can take early trades early on but don't commit to extended fights. Hecarim's Spirit of Dread (W) allows him to gain HP off damage he deals, ensuring him to win fights.
Once you reach the mid game take a peek at Hecarim's items. If he built Cinderhulk as his jungle item enchantment you are free to fight him for some easy passive orbs. Make sure to avoid him if he has the Warrior enchantment and/or Ignite unless you are ahead.
Late game against Hecarim is a piece of cake for Rhaast. With Cinderhulk he serves as an excellent Umbral Trespass (R) target for a free HP reset. Building Executioner's Calling is heavily recommended.”
“With your ult up, you can prevent his late one shot with his movement speed with your ult.”
“Annoying matchup because of his E and his R that can cancel your W and R channeling. ”
“He beats you early, but you both powerfarm well. Mid/Late you just w him when he charges and you can burst him pretty hard when he commits. Do not die to him early.”
“Who made this pony so mad !! He is a nightmare to deal with 1v1 and you will likely lose every fight with him early game unless your team comes to the rescue. Keep the jungle warded and care for him.”
“Difficult champ to deal with and his 1v1 potential can be surprising. Be careful when deuling his as you don't want to give him any free kills. If he gets ahead of you, it will be hard to come back.”
“Hecarim is quite strong pick currently. You can fight him early on if he doesn't have ghost or you are a bit ahead. Otherwise you should not fight him alone-”
“This is pretty even and skill matchup.
You can lose and you can win, its about how you're gonna play. Hecarim has great mobility and is good when ganking. I wouldn't fight him, unless you have advantage or there's a fight on some lane.”
“Heca should be easily invadable. He if you land Q most hecarims wont have any escapes ”
“Trade with Hecarim under your Facebreaker as the slow reduces his damage. Try to avoid trading with Hecarim with 2 stacks of Rampage(Q). Trade with Hecarim without his Spirit of Dread which is his sustained DPS buff cooldown interval is 22-18 seconds. Use Mega Adhesive for reducing his Devastating Charge(E) and stopping his Onslaught of Shadows(R). (Recommended Items: Blade of the Ruined King, Ninja Tabi) (Sustained 1v1 Trades: Even) (Outscaling Edge: Even)”