Cabal Coffers, Maze of Ith, Dark Depths, Glacial Chasm, Ghost Quarter, Kor Haven, Inventors Fair all of them turn into rainbow lands that cant do anything else when Toxicrene hits the field
A graded Enchanted Elsa, Spirit of Winter in PSA 10 has been changing hands around the mid four figures to the low four figures this year
You also get the option of getting Eternal Witness and doing it again for another seven or just throwing something back on top of their library and slowing up their tempo
The latest Jenova deck from Final Fantasy obviously likes that you can add a little sauce to your main course of refill draw, but really you have to look at this as a flexible draw engine for archetypes outside of Humans that usually get this tech
Foundry Inspector and Etherium Sculptor turn your artifact creatures into cheaper spells, or even free ones
It also plays exceptionally well with double-striking Warriors, and it even counts itself if you can somehow slip this 1/3 past an opponent's blockers
