The answer is I have no idea
The second reason I think it makes Magic better is that it disrupts the expected flow of the game, it mixes it up and allows situations where turn two things are happening on turn one
However, if you choose any targets for the ability and each of them becomes an illegal target, the ability doesn't resolve and you don't create any tokens
Its only different when you cast the omen, and only while the omen is on the stack
The Collector Number left on MTG Cards But in case it still wasn't all clear enough, cards today also usually include a collector number and rarity letter in the lower- information line
The tiny opportunity cost means you may not need a heavy defender theme to make Coral Colony viable, but it obviously helps and also provides another way to kill opponents using Axebane Guardian + High Alert untap loops