Team
Items

Gold turns into decisions.

There are over two hundred items and they are bought, not unlocked — every hero can buy every one of them. These eight come up in nearly every match, so they are the ones worth knowing first.

Accessories

Item Cost What it does Who buys it
Boots of Travel 2,500 g Teleports to any friendly unit or building on the map. Farming cores who cannot afford to walk.

Armor

Item Cost What it does Who buys it
Black King Bar 4,050 g Grants a few seconds of immunity to most magic and disables. Almost every core, almost every game.
Heart of Tarrasque 5,000 g A large pile of health, and it regenerates fast out of combat. Strength heroes who intend to be attacked.

Artifacts

Item Cost What it does Who buys it
Blink Dagger 2,250 g Teleports a short distance. Goes on cooldown when you take damage. Initiators who need to arrive before they are seen.
Eul's Scepter of Divinity 2,725 g Throws a unit into the air, invulnerable and unable to act. Supports saving allies, and anyone dispelling themselves.
Aghanim's Scepter 4,200 g Upgrades the hero's ultimate — a different upgrade for every hero. Anyone whose upgrade happens to be a good one.

Weapons

Item Cost What it does Who buys it
Desolator 3,500 g Attacks reduce the target's armour for a few seconds. Physical damage carries pushing high ground.
Divine Rapier 5,600 g An enormous amount of damage. Drops on death for anyone to pick up. People who have already decided how the game ends.

A note on the prices

Costs move with every patch, and some of these have been changed more than once a year for a decade. Treat the numbers above as roughly right, not as a shopping list.