2. Does the Anti Gravity spell work for your own units? In other words, can you use it to lift up buildings to protect them from an early wave of Zergling? (TheWarCenter.com) Yes, the Anti Gravity ability can be casted on friendly units and buildings. Also, the Anti Gravity ability has been added to the Nullifier, as the ability has proven much more effective in the earlier parts of the game. Nonetheless, this is still being tested and is subject to change.