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Warlock channeling Upheaval
Channeling an ability causes the caster to stop acting for the duration of the spell. Channeled spells may be ended when the channeling unit takes another action or is interrupted by another spell. While spells are being channeled, a draining bar will appear on the screen, indicating how much time is left in the channel.

Interrupting Channeled Abilities[edit | edit source]

If the channeling unit is issued another command, such as to move, stop, or attack, the unit will disrupt their channeling. Casting other spells or using items will also interrupt channeling, with the exception of toggled abilities, Wind Walk abilities, a few other abilities like Blade Fury icon.png Blade Fury, and items such as Shiva's Guard icon.png Shiva's Guard, and Phase Boots icon.png Phase Boots.

The only items that may be activated while channeling are Shadow Blade icon.png Shadow Blade, Glimmer Cape icon.png Glimmer Cape, Shadow Amulet icon.png Shadow Amulet, Armlet of Mordiggian icon.png Armlet of Mordiggian, Ring of Aquila icon.png Ring of Aquila, Ring of Basilius icon.png Ring of Basilius, Mask of Madness icon.png Mask of Madness, Phase Boots icon.png Phase Boots and Shiva's Guard icon.png Shiva's Guard. Activating any other item, including Power Treads icon.png Power Treads, Drum of Endurance icon.png Drum of Endurance or consumables will interrupt channeling.

Any disable that would normally prevent a unit from casting the spell in question will also interrupt channeling. This includes Stuns, Mini-stuns, Cyclones, Hexes, Sleeps and getting hidden. Though they do not prevent casting, Root effects will also interrupt channeling. Silence will interrupt channeling from abilities only, while Doom ability icon.png Doom and Static Storm icon.png Static Storm (with Aghanim's Scepter icon.png Aghanim's Scepter) will interrupt channeling from items as well. Some spells that forcibly move units, such as Vacuum icon.png Vacuum or X Marks the Spot icon.png X Marks the Spot (the first applies a ministun while moving units, and the second one is like an uncontrollable blink), will interrupt channeling as well, even if used on friendly units, however, other spells like Force Staff icon.png Force Staff and Boulder Smash icon.png Boulder Smash, will not interrupt channeling, because they just give a little push to their targets.

If the channel is interrupted before the spell's effects occur, the mana and cooldown will be wasted, and the spell's effect will be cut short, and in some cases will not perform their effects at all. This is in contrast to other, non-channeled spells with high cast times, such as Assassinate icon.png Assassinate and Requiem of Souls icon.png Requiem of Souls, which will not expend mana or go on cooldown until the spell has been completed. Certain channeled spells, such as Illuminate icon.png Illuminate and Powershot icon.png Powershot, will still perform their effect even if they are cancelled, usually at the cost of damage.

Channeled Spells[edit | edit source]

Bane - Fiend's Grip
Fiend's Grip icon.png
Duration: 5 (7*)
Disables, damages, and drains mana from a single target.
Crystal Maiden - Freezing Field
Freezing Field icon.png
Duration: 10
Damages and slows nearby enemy units.
Elder Titan - Echo Stomp
Echo Stomp icon.png
Duration: 1.4
At the end of the duration, sleeps and deals damage to nearby enemy units.
Enigma - Black Hole
Black Hole icon.png
Duration: 4
Damages, disables, and sucks in enemy units in an area.
Keeper of the Light - Illuminate
Illuminate icon.png
Duration: 2/3/4/5
When the channel ends or is cancelled, releases a wave that deals damage based on how long it was channeled.
Lion - Mana Drain
Mana Drain icon.png
Duration: 5
Drains mana from a single target.
Oracle - Fortune's End
Fortune's End icon.png
Duration: 2.5
Builds up a projectile that disables equal to channel duration but always does the same damage. Fires projectile if cancelled.
Puck - Phase Shift
Phase Shift icon.png
Duration: 0.75/1.5/2.25/3.25
Renders the caster invulnerable and untargetable for the duration.
Pudge - Dismember
Dismember icon.png
Duration: 3 (6 on creeps)
Disables and damages a single target. With Aghanim's Scepter, also heals the caster.
Pugna - Life Drain
Life Drain icon.png
Duration: 10
Drains health from a single target.
Sand King - Epicenter
Epicenter icon.png
Duration: 2
At the end of the duration, slows and deals damage to nearby enemy units for 3 seconds.
Sand King - Sandstorm
Sand Storm icon.png
Duration: 20/40/60/80
Turns the caster invisible and deals damage to nearby enemy units.
Shadow Shaman - Shackles
Shackles icon.png
Duration: 2.5/3.25/4/4.75
Disables and deals damage to a single target.
Tinker - Rearm
Rearm icon.png
Duration: 3/1.5/0.75
At the end of the duration, refreshes the caster's cooldowns.
Warlock - Upheaval
Upheaval icon.png
Duration: 16
Slows enemy units in an area.
Wildwing Camp - Wildwing Ripper - Tornado
Tornado (Wildwing Ripper) icon.png
Duration: 40
Creates a controllable Tornado that slows and deals damage to nearby enemy units.
Windranger - Powershot
Powershot icon.png
Duration: 1
When the channel ends or is cancelled, deals damage and destroys trees in a line. If it is cancelled early, the damage will be greatly reduced.
Witch Doctor - Death Ward
Death Ward icon.png
Duration: 8
Creates a Death Ward that attacks nearby enemy heroes.

Channeled Items[edit | edit source]

Boots of Travel - Teleport
Cost 2450
Boots of Travel icon.png
Duration: 3
Teleports the caster to a friendly non-hero unit at the end of the duration.
Town Portal Scroll - Teleport
Cost 75
Town Portal Scroll icon.png
Duration: 3 (5/5.5/6/6.5 for 1/2/3/4 recent allied teleports)
Teleports the caster to a friendly building at the end of the duration.