Its less efficient than Gaeas Cradle because it costs mana to activate the second ability and youre locked into a single creature type, but it can produce mana of any color and even makes colorless on an empty board
Normally, Spectacular Showdown gives a creature a permanent double strike counter and then goads it if it had a counter placed on it
Notably, opponents can't try to remove cards from your graveyard to change the cost of Drag to the Roots
Aggressive strategies need immediate access to mana , while control and midrange builds can afford to wait a turn
For me, Belle is actually one of my favorite cards from The First Chapter from a playability standpoint at well, with two fantastic abilities
Orzhov: This is commonly played in Pillar of the Paruns decks, but I dont think it looks good enough