Heimerdinger

Very easy opponent to take down, just prioritize your W instead of Q to destroy its robots, just be careful not to steal the waves of minions to your ADC.

Blitzcrank

it won't bother you at any stage of the game, you just need to use the W or E to escape the grab, mid-match you will increase your shield and your health, rendering its kit against you useless.

Thresh

Miss Fortune

VERY strong ADC that at the beginning of the game will not waste time to bother you becoming almost impossible to engage if flanked by a support like Senna or Blitzcrank, when it uses its final you do not have to waste time to engage her but you can easily counter it by making a lot of poke.

Pyke

Pyke bothers Rakan enough, but it's not the biggest danger, his grab won't bother you too much because you could run away quickly, using the R, W or E, worry about defending your ADC from him.

Senna

against Senna be very careful to use the W because if he were to dodge it he could stun you very quickly giving a kill to his ADC.

Alistar

Morgana

Morgana is very annoying, her stun does not allow you to escape alive due to the time of her stun, together with Ashe or the E of Miss Fortune you will almost always die because of her or because of an opponent's gank while you are stunned.

Zilean

Watch out for the first moments of the game, Zilean can destroy you very easily by having a lot of attack force right away, ask for a gank or a roam before hiring him at the beginning and half of the game.