Each Sinnoh trio member is level 100, had its typing changed to pure Water with Soak, has 274 Sp. Atk, using 85 BP Dragon Pulse into a Chansey with 103 Sp. Def. These were the damage rolls from each Sinnoh trio member's Dragon Pulse.
Palkia: 194, 196, 199, 208, 229
Dialga: 199, 203, 215, 222, 229
Giratina: 203, 206, 210, 215, 222
Here are what the damage rolls would be if their rolls were instead Attack or Damage modifiers:
If BP: 194,196,199,201,203,206,208,210,212,215,217,219,222,224,226,229
If Atk: 195,197,200,202,204,207,209,211,213,216,218,220,223,225,227,230
If Damage: 194,197,199,202,203,205,208,210,212,215,217,220,222,224,227,229
Each Sinnoh trio member hit damage rolls only possible with the Origin items being 4915 BP modifiers.