It adds a fun new gameplay variant wherein players play a game of Clue while playing multiplayer Magic
A deck with 18 lands may only draw 2-4 lands all game, while a deck with 24 lands is likely to hit a land every turn
While its plenty powerful, its the effect on perceived barrier-to-entry that really posed a problem because casual players watching Commander games in passing could reasonably assume that they needed hundreds (now thousands) of dollars in Power-9 mana as table stakes, just to join the format
Check out Lathril, Blade of the Elves and Ranar the Ever-Watchful
The sheer volume of explore and Glowspore Shaman means the extra color is mostly free, and another color of creatures to recur with Find after self-milling them isnt bad either
8 mana is rough, but this is a cast trigger, not ETB, so it cannot be traditionally countered with Counterspell and friends