If you can afford the expensive four set of these (They are $1300+ for heavily played versions) then you can have the best chance of drawing one or four as well as the chance for a dreaded double-Workshop hand
That's why cards like Decimate are so strong for Gruul, decks, since Decimate can outright destroy permanents of many different types, no burn or fighting needed
Sauron, the Dark Lord Whoa buddy, thats a lot of text on Sauron, the Dark Lord
Improving The Mana Base This is an Orzhov EDH deck thats very heavy on black mana and touches white mana for a few gold cards and white cards
If you can turn them into lands, such as with Ashaya, Soul of the Wild, or maneuver their abilities onto land creatures, you can untap either druid and a land infinitely
Merfolk Looter The classic