What is the Hardest "simple" mechanic

Landing a bard ult that is entirely beneficial to your team.

I think the hardest, simple mechanic to pull off is probably If you think about it, even pro players flash into walls.

Last hitting.

kiting and outplaying a melee champ as kalista

Landing a hook.

Say what you want about him, that is a hard skill to land.

for me its landing luxs ult on quick cast. i have no friggen clue why its so hard for me but i just cant XD

getting into range with Champs like Annie without using flash...there are very few players who have mastered the art of sneak-walking through the battlefield with immobile Champs.

Blinking through skillshots, especially with Alpha Strike or Phase Dive. I dodged a Light Binding once, on accident, and it won me the fight.

I...can't tell if you're trolling. What root?

Landing Heimerdinger's stun.

Landing lux's shield on allies who are moving

I don't know about that being simple lol....

For most players? CSing seems to be a pretty difficult simple mechanic.

Not misclicking a minion when using an ability.

i played around 100 games of heimer the stun was pretty easy the skill shot that annoys me the most is ahri's charm / lee sin q . also i cant insec very well but idk if that is a simple mechanic

I used to think that Master Yi was an easy champ as pointed out in his description, but then I saw Cowsep and understood how difficult it was to master an easy champ by great timing on all Yi's abilities and the items you can buy.

Wow I never knew he had a root.

For me its probably Azir's E. I always find the range is just not far enough. I learned recently (I think MSI) how to chain the E and Q together but I don't own Azir and havn't played him since.

Fiddlesticks ult for me

Timing any invulnerable skill to counter Karthus's ult. I feel like I always pop back out of my Zhonya's or reform from my blood puddle just in time to get blasted down.

a good lategame nunu ult is usually pretty hard

pressing R at the right time