I usually try to bait their charge but anyone have any good tips for this? Also what about hammer down.
No decent Rein will get baited into charging, you only really need to pay attention to it for counter-charging.
Rein v Rein is all about mind games, and maneuvering for positioning. You can sometimes bait the shatter by dropping shield for half a sec and putting it up again, but mostly, focus on getting a good position for you and your team.
I don’t play much Rein, but he’s the tank I choose if no one will play tank. There’s a very helpful guide at OU reddit that taught me a lot. Search “Basic Reinhardt Guide 2018 (actually useful)” and you’ll find it.