If you're not familiar with Mage Wars Arena, this post will likely be hard to follow. If you're interested, I recommend checking out the game here, and then getting a demo either at your friendly local game store or at a convention.
I just played a game of Arena on OCTGN. I was playing a forcemaster of Salenia and my opponent was a Priest of Malakai. I had a forge, meditating monk, a mana crystal, enchanter's wardstone and a surging wave-thoughtspore. My opponent had a forge, mana crystal and guardian angel. I rolled a really unlikely bad roll on a surging wave against his battle forge which cost me the whole match, and the more I think about it the more it seems like there really was nothing I could have done to deal with that bad roll. After that bad roll I didnt have any surging waves left except for the one attached to my thoughtspore. Next round, in order to finish off the battle forge, I had to force pull the guardian angel so that it was no longer protecting the forge, then my spore attacked it again. But then guardian angel was able to attack my spore and bring it to the brink of death, and then finished it off the next round. If not for my using force pull on the angel, it would not have been in range to attack my spore. And I wouldn't have used force pull if I hadn't rolled such a unusually bad roll when I had attacked the forge the round prior. If I had rolled slightly better, the forge would have been gone sooner and I wouldn't have spent as much mana and actions to take it down, so I would have had more mana to cast certain expensive spells sooner. And my surging wave-spore would have still been alive to deal with guardian angel so that I could focus on attacking the priest. But none of that happened because I had one lousy roll against a battle forge. It seems that for the very first time EVER, I have just played an Arena match where I lost exclusively because of luck rather than skill. It was frustrating, but at least it's only happened to me once in the four years I've been playing the game.
...Then again maybe I should have used my force crush on the guardian angel instead of the priest. I already had dot on the priest in the form of magebane, ghoul rot and arcane corruption, and I had used one of my ghoul rots to finish off Cassiel, Maybe I didn't need more dot on the priest and I could have spared my force crush for the guardian angel. I'm not sure if it would work or not, but I'll try it. Next time I'm facing a mage that uses guardian angel to guard itself and my surging wave-thoughtspore dies, I will try putting force crush on the guardian angel. If that doesn't work, then I'll know that this match was decided exclusively by luck rather than skill. Considering that this is the only time that might have happened in the four years I've been playing the game, I don't think I should worry about this match too much. But I really should try using force crush on the guardian angel if I ever encounter this situation again, just to see if it would work.