Headcrack

Headcrack is a rare rogue spell card, inducted into the Legacy set, formerly from the Classic set.

Previous availability

 * Regular Headcrack could also be obtained as a first-time reward for first time reaching Silver 10 and Gold 10 in Ranked mode from April 1, 2020 to March 25, 2021 (or as a reward of Climbing the Ranks (2/10) and (4/10) achievements).

Strategy
As a damage spell, Headcrack benefits greatly from Spell Damage.

Strictly speaking, its primary effect is a weak, costly alternative to most other classes' arsenal, such as Arcane Shot, Frostbolt, Mind Blast or Lightning Bolt. Its combo, however, sets it apart from the rest and opens up some very unique options:
 * it can be used to repeatedly trigger friendly minion effects, such as Gadgetzan Auctioneer, Violet Teacher or Questing Adventurer
 * it can be used to defuse the opponent's Secrets, such as Counterspell, Ice Block or Eye for an Eye
 * it can be used late game as a mana sink, ie, to spend otherwise unused mana to damage an opponent (same usage as Hunter's Steady Shot ability)
 * it guarantees you will have an extra card in hand next turn, which is helpful in some instances (Twilight Drake, Mountain Giant)

Trivia

 * Headcrack's artwork was changed in patch 14.6.0.31761. According to game designer Liv Breeden, this is because the original was deemed too dark and hard to read.
 * The artwork originally used for this card prior to patch 14.6.0.31761 comes from the World of Warcraft Trading Card Game "March of the Legion" series, for the card.

Patch changes

 * Moved from Classic to Legacy set.
 * Received new card art.
 * Previously: Deal 2 damage to the enemy hero. Combo: Return this to your hand next turn. [2 mana, Rare]
 * Previously: Deal 2 damage to the enemy hero. Combo: Return this to your hand next turn. [2 mana, Rare]