Porunga

Porunga is a fictional dragon from the anime and manga series, Dragon Ball Z.

Porunga is the eternal dragon of Namek summoned when all the dragonballs of Namek are gathered. He is more brutal looking than the dragon of Earth, Shenron, with a heavily muscled upper body. He is also somewhat stronger and can grant three wishes instead of one, so long as it doesn’t exceed his creators power, his creator is still alive, and each request is delivered in the Namekian language. He seems a lot more enthused with granting wishes than the grumpier Shen Long

Initially, Porunga had ability to bring only one person back to life at a time (though he could bring people back multiple times), as compared to Shenron who can bring back an unspecified number of people but can only do so once. Later, Porunga's power is strengthened to bring back as many lives as needed. The Rou Dai Kaioshin criticized this as "a blasphemous act that disrupts the order of nature" (the meaning of this would later be explained in GT) but did not seem to mind after that.