turn 1 played a 1 cost and the coined to do nothing and ended turn.
enemy board has a mana wyrm who is a 3/1 and I have a direwolf alpha on board and in hand have a harvest golem, mortal coil, and a undertaker. instead of mortal coiling the 3/1 and playing the under taker it decides to trade the alpha in and play a undertaker and tap. (default rules)