Invoker/Counters

Bad against...

 * Anti-Mage's mobility and magical resistance make him nearly impossible to kill alone.


 * Queen of Pain usually outlanes Invoker, giving her team a significant early game advantage while Invoker is still farming.


 * Invoker is heavily dependent on his spells, making him useless during.
 * is particularly deadly, because Invoker will continuously lose health if he keeps invoking and casting new spells.


 * Doom will completely take Invoker out of a fight, which is especially harmful as Invoker is a core hero.

Items

 * significantly reduces Invoker's damage output.

Good against...

 * Invoker's spells will disable and destroy Legion Commander while she's locked in a.


 * Most of Invoker's spells can hit Nature's Prophet inside, or when he runs into the treeline.


 * Tinker is relatively helpless against Invoker, as his and  can be easily interrupted by Invoker's long range disables, even if he blinks away.

Others

 * Heroes with long animations can be frequently interrupted with :, , or.
 * Heroes with naturally low mana can be easily shut down by :, , ,.

Works well with...

 * reveals enemies at low health across the entire map, making it easy for Invoker to land a.


 * is a good way to pull enemies into Invoker's AoE spells.


 * keeps enemies together for easy nuking.


 * holds several enemies in place for to do its damage.

Others

 * 's damage over time abilities will continuously trigger.
 * Heroes with long stuns and hides like can set Invoker up for his spell combos.

List of heroes that counter Invoker, and list of heroes that work well with Invoker.