Having a tame creature in Rend is extremely useful. Much like pets in other games, your tamed creature companions can fight alongside you, help carry items, and can utilized in other interesting ways as well. To do this, however, you're going to need to put in a bit of work before you can just start summoning your creatures willy-nilly. Here's how you can go about taming creatures in Rend and begin summoning them to your side.