They sent Legion-2 and Legion-3. Legion-1 stayed back because they couldn't afford to lose all three clones of a pathway at the same time. If that were to happen, they would lose the pathway forever.
They didn't bother to send any other clones to assist Legion-2 and Legion-3 because only the clones of the pathway of killing are at the godling rank. So, if the two of them can't take down one godling, it is unlikely that they will be able to take him down with more angels.
The two clones quickly arrived in the spiritual dimension through the Mindscape. They arrived very close to the Ocean of Blood and didn't have to go looking for it like before.
Like they planned, Legion-2 stepped forward first and alone. He went alone to fight to test the power of the godling and to avoid exposing the existence of their cloned nature for as long as possible.
When he moved within 100 kilometers of the Ocean of Blood, the giant finally sensed them. He opened his eyes and stared at them.
