Darth Sidious states in the book of the sith; He can maintain force maelstrom [b][i][u]indefinitely[/u][/i][/b] and reflect the attacks of an entire battleforce by himself with it. Darth Plagueus could bring life forms [b][i][u]back from death[/u][/i][/b] So yea. Light side wise: Quigon, obi wan, yoda; AFTER DEATH they could manipulate and influence events anywhere in the universe and go from anywhere to any where instantly.