Lantern 796: Big Barda and Mister Miracle can use Super Strength and Telekinesis.

Miracle Construct: Big Barda and Mister Miracle can use Barrier. Once per use of Barrier, if a barrier terrain marker is placed adjacent to an opposing character, Big Barda and Mister Miracle can make a close combat attack against that character as a free action as if they occupied the square occupied by the barrier terrain marker.

Errata

The keyword "Green Lantern" is "Green Lantern Corps".

Can Big Barda and Mister Miracle use Close Combat Expert when they attack with Miracle Construct?
No. Close Combat Expert is activated by a power action and Miracle Construct grants only a free close combat attack.