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Dota 2 Observer and Sentry Wards: get vision without wasting your detection
An Observer Ward helps your team see an area; a Sentry Ward reveals invisible units and wards within its detection area. They solve different problems. A Sentry alone is not a reliable substitute for normal vision: to attack a revealed enemy ward or hero, your team also needs vision of that spot.
ItemsPCDota 2 defensive items: choose the answer to the damage killing you
Do not buy the same item every match. After a death, check the damage recap and identify the disable or burst that stopped you; then choose an item you can activate at the right time.
ItemsPC