I like that deck much more than swallow, playing with the Armagios and the Chimeras is much more fun 8) I would remove the black holes though, and adding more gravity towers. (Black Holes are pretty situational, and don't help against Duos and Monos that much...)
Against AI4, the black holes might be fine, but against AI3 they are pretty useless most of the time. Against Arena, I wouldn't recommend it that much, but they may help out sometimes.