I have been using amazon pay card from past 7-8 months, I use it for pantry orders and small orders where I need items quickly and can't wait.
For any costly items usually I wait for any sale to start and avail 10% discount from other cards.
I understand it is amazon specific card but would be good if they match offer when amazon runs any sale with icici cards atleast. Anyways can't expect it to be applicable on flipkart or other sites.
When I took this card, I took icici savings account from them as well so I got debit card and I use it on Amazon/flipkart when there are offers specific to icici and applicable to debit cards
This may work out well if you have amazon pay card, opt for savings account as well and use it just to pay that card bill and that would take care of minimum balance requirement and give additional offers when icici debit cards are eligible.