四期三期必出一期是什么

简介：At this time, they had just killed five Lightning Leopards, but unfortunately, there were still no Silver-level ones among them. For a low-level tribe like the Lightning Leopards, it was not easy to get a Silver-level one. The most important thing was the purity of the bloodline. To advance to the silver level, the blood purity must reach at least 50%.