Win a 1 vs 3 Multiplayer Custom Game with no Allies against 3 Harder A.I. opponents.
Win a match against a Harder A.I. opponent.
Using Warp Prisms, warp in 50 units in a single Melee game.
Score the rank of Gold in the “For the Swarm” challenge mission.
Destroy 20 units with a single High Templar in a Melee game.