Nominated as "Spell Most Likely to Make Your Opponent Punch the Wall."
Mind Control is a basic priest spell card. It is the quintessential mind control effect.
How to get
Prior Year of the Gryphon's rotation on March 30, 2021:
- Two copies of Mind Control were a reward for raising a priest to level 10.
- Two Golden copies of Mind Control were a reward for raising a priest to levels 49 and 50.
Notes
Unless the target minion has the Charge ability, it will not be able to attack in the same round in which it was mind-controlled. A minion's Battlecry will not be triggered upon being mind-controlled.
Unlike most mind control effects, Mind Control has no limitations. Any minion can be controlled, regardless of Attack or cost. Mind Control is the only targeted mind control effect that can be used on minions with more than 3 Attack. This makes Mind Control by far the most valuable mind control effect in the game.
Strategy
Mind Control is one of the most powerful and potentially game-changing cards in the priest's arsenal. Ideally, reserve it for use upon especially powerful minions.
For many players, when playing against a priest it is considered reasonable to assume that they will have at least one Mind Control in their deck. While this is not necessarily true, because of the power of Mind Control, players will often choose to expect its use, and alter their actions accordingly.
Most importantly, this affects the summoning of extremely powerful minions, especially legendaries. For example, a player tempted to play 
Deathwing may choose not to if he is playing against a priest (unless the priest has already used 2 x Mind Control) due to the risk of the priest Mind-Controlling Deathwing and defeating the player. Even if the priest currently has no cards in their hand, experienced players can easily do the maths to predict the chance of the priest drawing it next turn, and swiftly defeating the player. For this reason, when playing against priests, very powerful minions can often become a burden, with the player not wanting to play them until they are certain that the priest cannot take control of it.
Mind Control does not become available until late into the game. Players can use this knowledge to anticipate its use. Essentially, once round 10 has been reached, it is possible that the priest will use Mind Control at any time. Note that use of 
The Coin can allow its use on round 9. Some priests may be particularly likely to play Mind Control on round 10, due to their eagerness to make use of the card. This can be helpful to their opponent, as they may not have yet played their most valuable minions by that point.
Specific interactions
If you Mind Control an enemy minion with the Blessing of Wisdom buff and attack with it, it will still draw cards for the player who summoned it.
Lore
Mind Control first appeared as a priest spell in the retail release of World of Warcraft. It allows the casting priest to take control of an enemy character for a few seconds, and to make limited use of their abilities. The spell is infamous for its use in PvP battlegrounds, with priests using it to send enemy players leaping to their death from high places. Before the introduction of diminishing returns, the spell had a 1-minute duration and could be repeatedly cast on a given target, potentially allowing a priest to control another player indefinitely. One player known as Booms infamously used the spell to hold Alliance players to ransom, demanding that they mail gold to one of his alts before he would release them. With the introduction of diminishing returns this possibility was removed, although the ability remains a potential source of great frustration for the target, and grim satisfaction for the user. With Mists of Pandaria Mind Control was renamed 'Dominate Mind', and made into a talent, further limiting its availability to priests.
A similar card is also found in the "Heroes of Azeroth" deck of the World of Warcraft Trading Card Game.
Trivia
Prior to Patch 1.0.0.4217, Mind Control was one of the most infamous cards in the game. A large amount of debate about it and its perceived unfairness featured on the official forums, with many considering the spell overpowered, given the card's potential to single-handedly win the game for the priest, by taking control of a particularly powerful minion in the mid- to late-game. The card's mana cost was increased from 8 to 10 in an attempt to balance this.
Artist
Patch changes
Patch 1.0.0.4217 (Closed beta, 2013-12-10): Mana cost now 10, up from 8.- Previously: Take control of an enemy minion. [8 mana, Basic]
