Sideboards that probably should have had this card due to its ability to dominate a board decided to take a pass
Koma offers something different compared to other Simic Legendaries as it cares about interacting in combat, rather than unloading your hand with lands to draw more cards
That makes all targeted removal useless the first time around, and while that doesnt dodge things like board wipes, it does make a big difference when youre trying to keep your Creatures alive
This is the kind of card, for example, that led to Ambassador Oak where one card represents two creatures rather than one
Incubator tokens are predefined, like food or treasure, meaning that they have an ability baked into them in this case, all incubator tokens have the ability 2: Transform this artifact. The flip side of Incubator tokens are 0/0 Phyrexian artifact creatures, so this mechanic is effectively a way to give you token creatures of varying sizes for an extra 2 mana that you can pay later
(2023-10-13) If you cast a card "without paying its mana cost," you can't choose to cast it for any alternative costs