Replace "Decline" and "Take Action" with appropriate command names.
Get rid of "Take Action" when prompting actions, put specific actions in the big orange letters.
Example: When prompting to return to command zone, it's very easy to accidentally choose "take action" when you use an ability that would return them to play. You wouldn't make that decision in real life, why would you do it here?
If you play a card that says "when creature dies, return it to the battlefield.". Ideally, it shouldn't prompt you to return it to the command zone if you're the one that cast it. It makes zero sense that you would even accidentally do that ever in any way if you purposely cast a spell which has the sole purpose of not putting it in the command zone.
Same with Airbending things. If you pick something that says "Airbend target creature", the opponent wouldn't put it in the command zone likely, it should give two options. One: "Airbend" or "Command Zone" both lit up the same color, not one grey and one orange."
This system is very frustrating for mechanic heavy decks.