Circle of Protection: Red - I tried to prevent the damage being dealt by a red creature. True it had Mountain Walk, but it would not let me select them.
Drudge Skeletons - If I give him the regeneration shield before the interrupt menu, it pulls him out of combat. If I give it to him at the interrupt menu, he doesn't regenerate.
Deft Duelist - Shroud not working, was able to enchant her with Lightning Talons.
First Strike - Seems not to work with multiple blockers.
(PS: Computer cheats, either 8 cards in starting hand, or only 59 cards in deck.)