As i was playing a solo arena i encountered a curious bug that i had not seen before. Playing Soulrest Marshall did not make the cards in my hand glow as "playable". I thought this was just a glitch so i tried to play a card, only to find that i got a "Not enough Magicka" error. While in my case it was just a simple case of trying to style kill a bot, i can't imagine what would happen in a real game if this glitch occured. Maybe im missing something, so if someone can spot my error that would be nice.
Edit: It seems like the card only is meant to work with CREATURE cards, not actions or supports, which is not really made clear on the card's wording.