If it doesn't handle the card rules automatically for you, then it's way worse than MTG Arena or MTGO. I've played with free MTG software (cockatrice) and it's not close to the same thing, even though it has all the art and buttons for doing all the effects manually (I use this shortcut to draw 3 cards, this shortcut to put 2 back, this shortcut to exile someone's graveyard, etc).
If they really built the best site for playing MTG, even over paid versions, then there's no real way to hide the fact that it's magic-specific.
If they really built the best site for playing MTG, even over paid versions, then there's no real way to hide the fact that it's magic-specific.