@Shad0w:
Hmm. There were two times where I ended up holding back and spreading out my falcons in the top 4. In both situations my opponent had a Suppression Cloak in play, so I couldn't just keep having the birds peck away at their life total. Instead, I was spreading them out to get good board coverage, and usually having one guard on the opponent's square to Hinder them. There was also the concern about Firestorm, making this seem like a good division. (Chain Lightning seems almost impossible to avoid?)
For example, against Nick in the finals there was a point where his Wizard was at A3 with a Suppression Cloak. I split my birds between B2 and B3 so that if he didn't move they could all get him in A3, but if he did something like teleport + run for it, I had birds that could get him even in C1.
If there was a question about why I didn't attack into the Suppression Cloak when I had around 30 mana, the answer is that I wanted to remove all the defenses on my opponent rather than just pay mana for damage, especially against the heavily armored Fire Mage in the ultimate round. Though I did have nearly 40 mana at one point, I did spend it all getting his armor back down to 0 and Teleporting his Wizard the last round so that each of my birds could hit for full value (which I think would have been lethal, but he conceded once it was clear he was losing the life tiebreak).