It's already proven that you need someone to help you out to win championship. Shaq-Kobe, Bron with Wade in Miami and Bosh and then Irving in Cavs. Recently, the Warriors, Steph, Klay and Draymond. And then role players to fit the pieces.
For the case of Luka, it's all role players, no one has become the number two or number three scoring options. They are all spread out in the 3's waiting for Luka to give them an assists. But they still have to make that shot outside otherwise it will be hard for them to win.
Lately, I have seen Christian Wood doing his own work. Post-up game, outside shooting and there's a point in the first half that he didn't even miss.
The second half was different though as was benched for a long time so the expectation is less as he got cold.
When he was in the Rockets, I saw him being frustrated with his team as there was no effort and energy to win a game.
I think he will be a good pair for Luka as long as he can keep up with the way Mavs management is doing their plays. That's the face of their franchise so every eye will be on him. Remember, KP hated that and it get deeper.