The main use of Hunter's Mark is to use it as a type of indirect removal spell. By using it on an opponent's minion with a lot of health, you weaken it tremendously so that any other attack, even a from a Boar or Snake, can easily take it out.
Using it on certain minions can be advantageous for different reasons:
- Lightspawn - A Hunter's Mark used on a Lightspawn will set both its attack and health to 1.
- Imp Master - Because the Imp Master loses 1 health at the end of every turn to summon an Imp, using a Hunter's Mark soon after it is summoned will take away a lot of its effectiveness.
- Any minion that has Enrage - Enraged minions only get the bonus effect when the minion is damaged. If Hunter's Mark is used on any minion with enrage, its maximum health is now 1, and so it cannot gain its enrage effects, and will lose any that it had.
The effect from this card can be removed by Silence.