Asgorath
Explorer
You do know repeatedly saying something doesn't automatically make it true, right?
There are zero rules on the action having to be taken and completed. None.
Of all the official text, it is mentioned exactly nowhere.
Right, but JEC has been fairly consistent (at least in the last few months) about what the intent of the Shield Master slam is. I'm with you that slice-shove-slice seems reasonable based on the wording, but my point is that it's a stretch to say shove-slice-slice is allowed by RAW and certainly not by RAI.
Based on this:
https://twitter.com/jeremyecrawford/status/994997096829804549
JEC is claiming that the trigger of "if you take the Attack action on your turn" is only satisfied when all attacks granted via Extra Action have been taken. Is this language in the PHB? No, obviously not, or else we wouldn't still be discussing it 5 years after the books were released.