I played a couple games after work and then when I went to play some games after dinner arena started installing the full 11gb . When it finished and I tried playing the interface was so slow and buggy I couldnt even open the tab to exit the game. Tried restarting the computer and internet the Arena interface was still unusable. Uninstalling it on steam also took weirdly long. Another bug I noticed is Cavern of Souls on Eldrazi made Ugin Eye of the Storms uncounterable.