Ok, I'm gonna need your help with explaining what Shield Master has to do with Shove? Here's the text for Shield Master:
With the Shield Master feat, players will gain a +2 bonus to Dexterity saving throws if they are wielding a shield. If a player has to make a Dexterity saving throw, they can use a reaction to shield themselves. If the save is successful, they will take no damage.
It's just a +2 bonus to Dex saving throws while you have a shield equipped. What does that have to do with Shove?
