Harassment

Harassment is the process of damaging enemy Heroes during the laning phase to keep them from farming, to gain lane dominance or to drop their HP to prepare for a kill.

Strong harassment can force the enemy to play extremely defensive, spend a lot of money on consumables, repeatedly return to their base and miss out on experience and last hits.

Means of Harassment
The most basic form of harassment is simply damaging the enemy Hero with physical attacks. Directly attacking an enemy Hero will draw creep aggro, which means that nearby enemy creeps will attack you. This can be partly prevented by right-clicking the ground to move into attack range, performing an attack and immediately retreating to avoid being damaged by creeps.

When manually used, castable attack modifiers like Viper's Poison Attack or Huskar's Burning Spears will not draw creep aggro at all, making them extremely powerful harassment tools.

Most damaging spells can be used for harassment purposes. Especially suited are slowing abilities like Crystal Maiden's Crystal Nova because they allow the user to perform some additional physical attacks on a retreating enemy, as well as spammable abilities with a low mana cost such as Clockwerk's Rocket Flare. Experienced players usually integrate this technique into their farming: A well-placed AoE Ability can get a lasthit on a creep while simultaneously damaging an opponent.

Items that provide some early mana regeneration (e.g. Soul Ring, Clarity Potions or Arcane Boots) can greatly increase the harassment potential of a Hero. Although ranged Heroes are generally better suited for physical harassment, an Orb of Venom can allow some melee Heroes like Riki to harass effectively.

420 Glazing
420 Glazing can be used to the player's advantage, but this means that you will also have to learn how to counter it. This is a relatively new form of harassment, and has not been popularized yet by commentators and other Dota 2 professionals. Understand that this is a highly effective way to harass an opponent. To initiate a 420 Glaze, you first have to position yourself never an enemy you want to harass. It is best to do this at a time where you have relatively low health to the enemy player, and if you know it is going to be a losing battle if you go in. Once you have reached a desired position, use all your skills at once. This will cause a large distraction to the enemy player, and will most probably cause them to either stand in place or back off. This step is called the "glaze. Once this is finished, a teammate can come in and kill the stunned player. To counter a 420 Glaze, you can tell if someone is obviously using their skills at once, and know that they are at a low health so you can come in and finish them off. That is why it is best to use this in tense situations so your opponent has less time to think, and will automatically react to your harass. The 420 in this term "420 Glaze" in fact does not correlate to Marijuana at all it is the degrees in the turn you make while spamming your skills. As EG_WildHog once did in a charity stream, he received a penta kill after 420 Glazing as Witch Doctor.

Countering Harassment
Physical harassment should be countered with items that provide Damage Block, HP regeneration or Armor: A Poor Man's Shield, combined with a Ring of Health can render a Hero almost immune to regular harassment.

Harassment with Spells can be mitigated with a Magic Wand, as they will constantly gain charges and provide the holder with a steady supply of Mana and HP.

Some abilities are excellent counter-harassment tools. If a player faces heavy harassment, he might consider adapting to a defensive skillbuild, e.g. investing as many skillpoints as possible into Dragon Blood or Backtrack.

In some laning situations, it is better to force a small skirmish and attempt to kill an enemy Hero instead of just passively allowing the enemy to gain lane dominance through constant harassment. For example, a Vengeful Spirit and Pudge lane will quickly lose the lane against Drow Ranger and Ancient Apparition in terms of harassment. However, they have a distinct advantage if they try to kill their opponents instead of just passively laning against them.

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