This would get out of hand VERY QUICKLY, but I can't help but giggle at the thought of battering enemy planets with meteorites.
I get that you can't meteorically colonize an already-colonized planet belonging to someone else for the sake of... well... game balance, but the impact could be reduced for armies. Maybe it applies one blocker at most to the planet, which would be the landing zone for the army, and the blocker can be reapplied if it's removed? Maybe to balance it, the target gets Minerals from clearing the blocker, like with the Buried Lithoids from Calamitous Birth's current thing?
As for the Colossus, it could keep the theme of the Meteorite Colony Ship; it could apply only a 50% penalty to Habitability and kill only half of the planet's Pops, but it could also fly and/or fire twice as fast. :3
I get that you can't meteorically colonize an already-colonized planet belonging to someone else for the sake of... well... game balance, but the impact could be reduced for armies. Maybe it applies one blocker at most to the planet, which would be the landing zone for the army, and the blocker can be reapplied if it's removed? Maybe to balance it, the target gets Minerals from clearing the blocker, like with the Buried Lithoids from Calamitous Birth's current thing?
As for the Colossus, it could keep the theme of the Meteorite Colony Ship; it could apply only a 50% penalty to Habitability and kill only half of the planet's Pops, but it could also fly and/or fire twice as fast. :3