In Modern, there are threats that are powerful enough to play despite being caught by common removal, and threats that are powerful because they dodge common removal
In variants of these decks utilizing Mox Diamond it gives the decks a way to utilize future Diamonds and also recoup the loss of the land pitched to an initial Diamond
Even though I was bullied out of continuing my work on it, I still steadfastly believe that mana usage is scarily often the telling statistic in a game of Magic
Every Disney Lorcana card rarity has a purpose, so don't feel discouraged if you don't get what you want right away
You can fairly reliably cast Gweena on turn two in other formats like Pioneer or Explorer, with one mana creatures like Llanowar Elves and Elvish Mystic to help ramp up to bigger cards like Craterhoof Behemoth
Arcum's Whistle, Arcum's Sleigh and Arcum's Weathervane are all creations of Arcum Dagsson, a powerful mage that researches the artifacts left after the Brothers' War