When all of your cheap cards cost black mana, youll have turns where you need double or triple black in the early game, which isnt always realistic
The publicity that came with The One Ring didnt hurt, either
I see Hew the Entwood as a finisher in a big artifact deck that has something like Bitter Reunion out to make haste
More treasure cards would appear in Rivals of Ixalan , a small expansion set, released in January of 2018
"Copy" is my favorite word in the entire game, and if you ever played my Live the Dream Cube on Magic Online , you'll know I attempted an "X spells matters" theme with cards like Zaxara, the Exemplary and Unbound Flourishing
Case of the Uneaten Feast White lifegain always wants this kind of effect, and getting a turn to do some kind of Lurrus of the Dream-Den/Underworld Breach stuff to get back your Voice of the Blessed that met its fate far too soon is reasonably big game for those decks