Because of Heimerdinger's K/D/A and utility, he has a fairly average overall win rate. He does best in the late game, with a winrate of 54% in that phase. Unfortunately, he does terribly in the mid game, where Heimerdinger's winrate is 49.75%., The difference between his best and worst game phases is about 4.3%. This large difference shows us that his power spikes and wanes in different parts of the game. Prepare accordingly.
Heimerdinger has been used somewhat often in recent ranked League of Legends rounds. In the current meta, his popularity is 4.3%. Hardly anyone sees him as a danger. He has only been banned in roughly 2.5% of LoL games.
Heimerdinger is most commonly played in the support position. This occurs in 41,7% of his rounds. Yet, support Heimerdinger has the highest win rate (53,6%) of all positions but is less popular of a position (played 6,8% of the time). At this time, Heimerdinger's meta game is focused on dealing damage. In particular, his build should mostly be centered around magical damage. Moreover, he is an ok tank champ. Dealing physical damage is the least important part of Heimerdinger’s kit.
You should anticipate having to spend a significant amount of time practicing and learning to pick up Heimerdinger. Most League gamers think he is a difficult champion to master. Heimerdinger mostly deals magic damage (93% of his total damage). He doesn't deal a lot of other damage types and should not be played as hybrid damage dealer..
Heimerdinger deals a great deal of damage in a regular ranked match (20.187 damage). You should focus on developing him as a damage dealing champ to smash your foes.
He is an average damage dealer in the game with 3.9 kills on average each game. That is one of the lowest kill counts amongst all supports. Moreover, he has a somewhat above average death rate with an average of 6.8 deaths per League of Legends round. Furthermore, Heimerdinger's KDA is usually low with an average KDA ratio of 1.9 as well as 8.7 assists per match.