There is a power jump at the third land, so these lands play well where they start coming into play untapped when you really need them to be untapped
The opponent that controls three or more creatures as the ability resolves doesn't have to be the same opponent that controlled three or more creatures as it triggered
My particular favourite is Yunas Whistle a heartbreaking moment in the game meant to help Tidus find her again even over great distances, but here its used to call a creature from your deck, making you search for it until you hit one and actually being able to call it forth unlike poor Tidus in game Listen to my story The Commander format already lends itself well to the FF setting being a multiplayer version of the game so it feels a lot like forming a party with an unlikely band of heroes and dealing with some particularly vicious villains
Your Commander's Domain will still restrict what spells and non-basic lands you can include in your deck, however
Opt and Discovery round out the deck as our options for best cantrips
The group decided this was an ability used infrequently enough that it didn't make sense for two different colors to do it, so we started a discussion about which color should get it