I was playing against a red and green player with my white and black vampire deck. When on turn five or six I had bloodthirsty conqueror and marauding blight

priest cards out and 3 more. I had attacked with an enchanted vampire of desire moon with a 1/1 counter on it from the legion lieutenant and another counter from the enchemant squires devotion making the vampire a 3/3. When I attacked he defended with a 4/4 dragon token that I killed because the card had deathtouch and lifelink. That’s when the combo started. I got the kill and the healing for 3 but that’s when it started. Marauding blight priest goes off and it deals 1 dmg to the opposite player then bloodthirsty conqueror goes off and then does it heal for dps but then both cards go off again and then again till the poor player at at 21 heath dies on the spot without being touched.