OK, I admit not all of them sound impressive.
The Suit of Time
Anyone wearing the Suit of Time can learn the history of any dead creature, provided he has access to the skull. There is no limitation on how often the skull can be used, and the time elapsed since the death of the creature matters not.
The skull cannot keep any secrets from the wearer of the suit, and the wearer can even see through the eyes of that creature three times per day.
The Suit of Darkness
The Suit of Darkness allows the wearer to walk along the event horizon of black holes without further protection.
The Suit of Distance
The Suit of Distance allows grand manipulations of the three dimensions of an object. The wearer can move whole suns, collapse suns by shrinking them, or create new suns from interstellar matter.
The Suit of Gravitation
The wearer of this Suit can detect and manipulate gravitational lines, moving whole planets. Suns, however, are usually too large to be affected.
The Suit of Dream
The wearer of the Suit of Dreams has a limited power over reality, making his dreams partially come true. He can also capture a whole planet in nightmares. Some say that the suit also speeds up its wearer.
The Suit of Death
The wearer of this Suit is suffused with negative energy, making him immune to all attacks using that dread power, and all death attacks. Any living creature within a mile of the wearer dies unless making a Fortitude save with a DC that is increased by 10.
The Suit of Power
This Suit increases the save DCs of all the wearer's special attacks, spells, spell-like abilities and supernatural abilities by 30.
The Suit of Talent
The wearer of this Suit can learn very fast, learning new abilities at twice the speed he normally would.
The Suit of Trust
Anyone seeing the wearer of this Suit cannot help but trust him, becoming a friend of the wearer.