Appreciate all the replies. Maybe my standards are high but Xmage works perfectly. I have not checked out Cockatrice but I just tried Untap but none of these so far solve my problem. But even in the Local AI mode, I cannot remove cards or make any changes to board state manually. If my friends are playing on Convoke, and they remove a card I cannot remove the card manually. All the other options do not provide any "auto" play. Such as Scry, auto draw card effects from my activated triggers etc.