The unit with the best price-to-performance ratio.

It's clear you don't have much experience with TC3.

Just trying to put someone down. :D I even had to test it. Phoenixes kill 2 Archangels. They have 3 attack and 3 defense, and the phoenixes deal damage, leaving the Archangels with 7 health, and so on. In short, the diagnosis is: there is no chance for any monsters against a doubled number of phoenixes. There simply isn't! There might be a chance for bears, but only with very high initial stats.