The Wild Heart Isle linked to 4 islands but 3 of them were teleportation arrays while the last was a bridge. Unlike the Ravaged Isles, the bridge here was constantly in use in both directions.
Some beasts did use it but mostly the peak of the Sky Realm and with high intelligence only. They were issued special badges so cultivators did not strike them down but usually they were simply there for an auction or market item not easily found in the Wild Heart Isle.
Some bloodlines needed a boost or perhaps a certain purity of element to progress. Whatever the reason, the island directly connected to Wild Heart Isle was heavily leaning toward mercantile powers.
The leaders, however, were an organization simply called the Warders. They were also in charge of the other 3 transit points. It was that organization most information brokers relied on for news from Wild Heart Isle.