good
i quite enjoyed playing it a while.
i do think there are some improvements possible tho :
1st, on a certain lvl the hp of the computer bugged and i couldnt deal any damage, which was quite anoying, but i did finish the lvl in some way.
And i think you should add a function with "throw to graveyard" or smthin
cause on a certain point i had like all the same cards, and i couldnt do anything with them.
anyway, good game!