Glyph of Fortification: the button that saves a tower
One press of the glyph saves a tower that is about to fall, or wins a lane in the early game. But the glyph is shared by the whole team and recharges for five minutes — waste it and you are left without protection. We break down exactly what the glyph does, how to save buildings and control creeps with it, and when to press so you never regret it.
What the glyph is
The Glyph of Fortification is a team button for building defense. On press, all your towers and buildings stop taking damage for a short time, and your lane creeps are briefly protected too. It is not a heal: health is not restored, damage is simply cancelled for a couple of seconds.
The glyph is shared by the team, cooldown 5 minutes. Buildings are immune to damage for ~7 seconds, creeps ~4. It is protection from normal damage, not an absolute shield: press it deliberately to save a tower or win a lane, not on reflex.
What it actually does
The glyph applies immunity to damage to two targets at once — buildings and your lane creeps, but for different durations.
- Buildings. All your towers and buildings take no damage for about 7 seconds — enough to survive a creep wave and the team's dive.
- Lane creeps. Your creeps are protected for about 4 seconds: they cannot be last-hit or denied while the glyph is active.
- It is not invulnerability. The glyph reduces incoming damage but does not save from instant-kill effects such as Culling Blade — a creep under glyph can still die to an execute.
- One per team. The button is shared: one player presses it, and it is spent for everyone.
The glyph ties directly into backdoor protection and tower tiers — how the buildings themselves work is covered in the towers and barracks guide.
How to use the glyph
The glyph has two main uses — defensive and lane control. Both come down to buying time and not giving up a resource.
- Save a tower under push. The tower is at its last percent and defenders have not arrived yet — the glyph cancels the finishing hits and buys time to TP.
- Stop a fast push. If the enemy crashes into a building with a big wave or a stack, the glyph breaks their tempo and forces a retreat.
- Win a lane. Glyphing your creeps stops the enemy from last-hitting and denying them, helping you shove the wave to their tower.
- Wait for backup. Under glyph a building lives the extra seconds — exactly what allies need to teleport in and defend.
The glyph does not save every tower: if the enemy is set for a long siege, vision and control matter more. Where to place wards is in the warding in Dota 2 guide.
Cooldown and timing
The glyph's main resource is not the immunity itself but its availability. The cooldown is 5 minutes (300 seconds), one per team, and early in the game it is not open right away.
- Five-minute recharge. Spend the glyph and the next is five minutes away. In that window the enemy can come with a second wave with no protection up.
- Don't press on reflex. A glyph for one or two saved points of tower health is almost always a waste.
- Count the enemy glyph. If the enemy recently spent theirs, you have a window to push without their creep and building protection.
- A team decision. Because the button is shared, the one who sees the whole picture should press it, not everyone from their own corner.
Common mistakes
These slips leave the team unprotected at the worst moment:
- A "just in case" glyph. Pressed without a threat, it goes on a five-minute cooldown — and the next attack lands for free.
- Waiting too long. Pressing the glyph when the tower is already falling is too late — press it before the finishing hit.
- Relying on it versus an execute. The glyph does not cancel instant-kill effects — it is protection from normal damage.
- Forgetting the creeps. A glyph on the lane at the right moment wins the creep equilibrium and a chunk of tower almost for free.
FAQ
What does the Glyph of Fortification do?
The glyph makes all your buildings immune to damage for about 7 seconds and your lane creeps immune for about 4 seconds. It is protection, not a heal: health is not restored, damage simply does not go through. The glyph is shared by the whole team, and its cooldown is 5 minutes.
When should you press glyph?
There are two main cases. First, to save a tower under push: the glyph cancels the finishing hits and buys time for allies to teleport in. Second, to win a lane: glyphing your creeps stops the enemy from last-hitting and denying them and helps shove the wave to the tower. Do not waste it — the next one is five minutes away.
What is the glyph cooldown?
The glyph cooldown is 5 minutes (300 seconds) and it is shared by the whole team. Early in the game it is not available right away. Because the recharge is long, it matters not to press it reflexively: a wasted glyph leaves you without protection for the next few minutes.
Will the glyph save a unit from a kill?
The glyph grants immunity to damage, but it is not full invulnerability: it does not save against instant-kill abilities such as Culling Blade. Buildings are not killed by such effects, but a creep under glyph can still die to an execute. Treat the glyph as protection against normal damage, not as an absolute shield.
The glyph saves towers — boosting saves seasons
A well-timed glyph wins the defense, and understanding objectives wins games. Want to climb faster — a boost speeds up the result, and macro keeps it. Not sure which format fits — message us in chat.