Enjoy the classic broodwar game with improved mechanics, new units, upgrades, abilities, and lot of changes that will improve the gameplay and open new strategies and compositions to fight with.
The early game support role now has been taken by the Warden. A new caster unit that comes from the robotics and help supporting ground forces. It have the time warp ability (AoE speed and attack slow, also slow unit animations), the guardian shield ability to improve the shield effectiveness of the ground army (+2 shield armor). And plasma surge ability that instantly restore 75 shield points to an unit.
The Sentry has been redesigned as a fighter unit with the blink ability. Functionally, resembles more a stalker from SC2, but focussed against light units. Due to its increased mobility and high concussive damage it's great to harass workers, or snipe key units as templars, medics, ghosts and defilers. It can also be used to effectively fight infantry and mutalisk.
Mothership core grp by Tykous.
Shield overlays grp by Sahasrahla.