Alright here is another one, again it could be limited to no more than 10, and maybe that's even too much. This one has the following effect:

Makes a planet Mega-Colossal in size. Can only be used on Crystal, Gaia, Dyson, Exotic, Ecumenopolis, Plasma, Chthonian(Who would?), Aphotic, Demon, Irradiated, Oceanic, or Sentient worlds. Could only be used on those planets of course since they cannot be further transformed. Next thing you know we'd get into Giga-Colossal, or Tera-Colossal or something. I had even thought of making it a requirement that the planets be Colossal in size but that would eliminate 4 types right there, so not really digging that. So any thoughts? People liked the first idea best, the second not as much, so I am curious to see what this one gets...

Yes because there's no such thing as a mega-colossal oceanic...

Anyway... No. Because this would allow people to make super good planets even more super gooder, reducing the number of planets needed for a given resource production value, and thereby REDUCING the strategy involved.