There is a short answer to what Puck is, and a longer one about why it matters — both are here.
Short answer
Mechanically it is straightforward; the confusion comes from how the game names and presents it.
Knowing this does not make you better at Dota 2, but it does make the rest of it legible. Two similarly named things exist, and mixing them up explains a lot of contradictory advice. Treat anything stated without a version number as provisional.
What it changes in practice
It is more consequential in the late game than the early one, which is why first impressions mislead. The wiki entry is thorough and buries the actually useful part six paragraphs down. Anything that behaves differently on console than on PC is flagged where it matters. The community name and the official name differ, which makes searching harder than it should be.
Popularity and importance are different axes, and this sits differently on each. Time spent confirming which version you are on is never wasted. The game introduces it quickly and assumes you picked it up, which is where the confusion starts.
What changed since launch
A design that looks inconsistent usually reflects a change of direction mid-development. Older threads are worth reading for the reasoning rather than the conclusions. Whether it is worth going out of your way for depends entirely on how you are playing.
- Read the in-game text and the wiki as two partial sources.
- Do not confuse it with the similarly named thing — that mix-up drives most bad advice.
- Region and platform change more than people expect, so confirm both.
- Note where it first appears, so you can go back if you need to.
What it does mechanically
Localisation choices change names and sometimes implications between regions. It helps to understand why a step exists, because then you can adapt it when your situation is slightly different. Comparisons to the closest equivalent clarify more than an isolated description does. Descriptions written at launch persist long after the thing itself has changed.
Screenshots age faster than text, which is why this describes rather than shows. The most repeated fact about this is usually the least useful one. In-game text is often deliberately incomplete, which is why the wiki disagrees with the tooltip.
What it means in the story
A method that works but cannot be explained tends to stop working without warning. Where the game's own menus place it tells you how the developers categorise it. It appears in supplementary material in more detail than it does in the game.
The useful part of any answer is the part that tells you what to do differently. First impressions of Puck tend to be shaped by one memorable encounter rather than the whole picture. There is a persistent myth attached to it that has never been true in any version.
Where it fits
What follows assumes you are on a current install and have not modified it. Its role has changed across updates, so older discussion describes something slightly different. Something introduced as minor can become central several updates later.
Where people go wrong
- Assuming a guide from an older season still describes the current version.
- Believing a figure that has no date attached to it.
- Skipping the prerequisite because it looked optional in someone else's summary.
- Assuming a page is current because it ranks first.
Dota 2 FAQ
Why does the community disagree about this?
Because most disagreements are two people describing different versions, platforms or skill levels without saying which.
What is Puck in Dota 2?
The short answer is above. The longer one is that it fills a specific role, and understanding that role explains why it keeps coming up.
Can I miss it?
Where it is missable, that is noted above. Most players encounter it without going looking for it.
Is it important?
More than its screen time implies, less than the discussion around it implies. Somewhere in the middle.
Work through it in the order above and puck stops being a question you have to look up again.