Many cards require an opponent to have more resources than you, and don't work if you have the most
Then you can always replace itself since it counts the one you made and also works well with Night Soil too
And the Eldrazi are all colorless and great ways to dump 10+ mana in a single turn
Interestingly, this is the first Universes Beyond set that will be legal in the Standard competitive format, so this set is a great introduction to that style
If I was building Izzet Lessons with an infinite budget rather than on a zero rare / $30 budget, the non-land cards in the deck would look almost exactly the same, but the one place the deck would get a massive upgrade if budget wasn't a concern is the manabase, which is currently one tapped dual land and a bunch of basics
This card is the glue that keeps a chaotic die-rolling deck running smoothlyand spectacularly