So, I have a fair amount of experience in Mage Wars (1 year with 5-7 games a week) and I stopped using Blocks and Reverse Attacks after the first three months.  If you are a Forcemaster, they may be worth it, but there are just too many ways for people to pop them with small creatures, unavoidable attacks, seeking dispels or simply waiting for you to run out of mana.  Of course, I tend to play characters that have massive amounts of healing, but I was wondering if anyone else avoids using Blocks and Reverse Attacks?