How to Create Low Poly Map?

So I am wanting make a simple low poly map for my game just to get started. I am not sure how to get the terrain editor to make it look low poly in unreal engine. Should I just use blender or is there some other software I can be using? I have searched on google and youtube and didn’t find what i was looking for so any help would be great.

To achieve a “real” low poly effects it is better to use a 3d tool. Otherwise take a look at those threads:
https://forums.unrealengine/showthread.php?51594-How-Do-I-Go-About-Creating-a-Low-Poly-Landscape
https://forums.unrealengine/showthread.php?2759-Landscape-without-smoothing

You can use The Landscape Tool, just use a lower resolution and scale the landscape up.

You can also get the cross product of ddx/ddy and plug it into the normal slot.

Edit: I should have read the linked threads as what I said is contained within one of them.