Sap is a Rogue spell that lets you return any enemy minion of your choice to your opponent's hand.
Ideal to use against minions which have been buffed since they will not return when your opponent plays the card again. Avoid using it on minions that you have damaged or that have powerful battlecries.
In World of Warcraft it is a core rogue ability learned at level 12. It is the longest-lasting crowd control ability a rogue has. It will completely incapacitate a target for 60 seconds. -->
- "Sap" on WoWWiki.com. Retrieved 2013-10-20.