It's actually 150k ec for x3 wrists, higher for x2 top. If every sin was able to get x3 and x2 top easily sins would be op. And btw, i got x3 wrists in 20 tries with the spirit forge
Idk how much easier it is to get. But my barb got triple interval wrists first roll. So saying 150k ec isnt accurate. Its purely down to luck not ec, sure more ec you have more rolls you get, but each roll gives you the exact same chance, just more swings at it.