StarCraft II: Heart of the Swarm/New Protoss units

Here are the new units the protoss will get in Heart of the Swarm.

Oracle
This unit is a fragile aircraft but it is a powerful harassment unit with multiple special abilities and fast movement speed.

Tempest
New Capital ship that hits enemies with its long range weapons.

Mothership Core
This unit can be received by building only a Cybernetics core and owning a Nexus and it can turn into a Mothership.

Returning units
The Carrier has returned to serve alongside the Tempest.

Modified Structures and Units
The Nexus gains new abilities.

The Phoenix will receive some changes due to players concern about the effectiveness on fighting massed mutas in multiplayer games.