Ardent Prayer (Earth-2042)

"Covenant vessels like the Ardent Prayer are a prelude to the devastation the full Separatist fleet can visit upon a planet."

The Ardent Prayer was a Covenant SDV-class heavy corvette attached to the Confederacy of Independent Systems' Fleet of Valiant Prudence. Its Shipmaster was Ardo 'Moretumee. The vessel took part in the initial stages of the Separatists' invasion of the planet Reach in summer 20 BBY.

Source

 * https://www.halopedia.org/Ardent_Prayer