Mutate a Lair during the first 285 seconds of a Melee game.
Hold a Xel’Naga Tower for 5 consecutive minutes in an Unranked or Ranked game.
Destroy 10 cloaked or burrowed units in a single Melee game.
Watch any Battle.net replay.
Cancel construction of a structure that is being destroyed by an opponent in a Melee game.