The cards that should always be swapped are Olive McBride, Ward of Radiance, and Mists of R'lyeh
Sorcery Color tag templates(None) Wrath of God Destroy all creatures
Though this is a reliable source of Treasure production, Goldspan Dragon most notably states that rather than producing one mana of any color, when sacrificed, its controller's treasures produce two mana of any one color instead
Also, True King Bahrastos, the Fathomer, if banished by the effects of Crossout Designator or Dwimmered Glimmer, can be later added to your hand by the effect of Tenyi Spirit Adhara
If you're playing a White deck with creatures, particularly one geared more toward midrange, you will be playing three or four copies of this card