Here is the full list of all 19 Divine Knockout (DKO) achievements.
Achieve 'Practice Makes Perfect'
Achieve 'Resilient'
Achieve 'Rebound'
Achieve 'Victorious Gold'
Achieve 'The Penta-Ultimate'
Achieve 'Victorious Silver'
Achieve 'Destructive'
Achieve 'Air-Time'
Achieve 'PvE'd'
Achieve 'Triple KOs Gold'
Achieve 'Double KOs Gold'
Achieve 'KO Collection Gold'
Achieve 'Traveler’s Tall Tale'
Achieve 'Triple KOs Silver'
Achieve 'Double KOs Silver'
Achieve 'KO Collection Silver'
Achieve 'Divine Knock Out!'
Achieve 'Damage Dealer Gold'
Achieve 'Damage Dealer Silver'