It also solves this archetypes issue with blocking: Once you have a few Monk tokens, you can cast spells to trigger their prowess while also creating other tokens thatll serve as blockers later
And if it draws out a kill spell before we can cash it in for Spiders, all the better
If the Reality Shift results in a face-down Tangled Florahedron, you have the option to pay to get a face up Tangled Florahedron, but you will not have the option to play Haven of the Harvest
There are plenty of ways to trigger valiant for free or cheap too, so doing it the turn the Forerunner comes down isn't some pipe dream
For cards that were once legal but are too old for Modern or that were banned long ago, this comparison isnt all that hard
These codes are only used during design and development and are always gone before the file goes to anyone else