When DE enters the field, you get a confirmation box to surveil 4. After you’ve done that, another box opens to confirm that you want to return a creature the the owners hand.
If you choose not to bounce, the surveil will not happen.
Please either fix this behavior, or add it to the card text.
//Edited Title -Brigby
What, another “and/or” condition being coded as just an “and” condition? Color me shocked
Yep.
Oh, and if you don’t surveil, you can’t bounce
i can say bounce is so complicated in this game… 
Why does the game display a choice whether to surveil or not at all? Surely if you do not want to surveil, you can just select 0 cards to move to your graveyard?
No, once you surveil you must discard the set number (surveil 1, 2…ect) of cards.
Its not like paper, the surveil number is not the number of cards you see but the number you discard (you see 4 every time, I think)
It does make you discard if you Surveil but you do not have discard the full amount. If surveil 2 you can discard 1 but not zero
I’d like to second this bug. DE doesn’t work properly with other surveil-matters cards when you choose NOT to bounce anything. Cards like Enhanced Sur. or Disinfo Camp. don’t trigger off of DE unless you bounce a creature - if you “not now”, game doesn’t register that you’ve surveilled.
You’re right that this is how surveil currently works, however, there’s no reason why it should work like that, and it’s different from how it works in paper MTG, where you can put 0 cards into your graveyard.
Hey! Came here to post this. Glad it’s already here