This will be a particularly strong card in location-based decks, as you can pull whatever location card you want to right out of your deck
Your spot removal serves three purposes: clearing out the things that stop your sweeper, stunting their first turn or two to give you more time to flex your bigger spells, or just keeping things clean post-sweeper
Cabal Stronghold still works as excellent ramp in the mid-to-late game should you be running mostly Swamps which, honestly, if you're running an effective discard deck, you should have anyways
The actual cards may vary slightly from the picture as the artwork on Energy cards has changed over the years
That flexibility makes it an incredible toolbox card in decks with silver-bullet 1-drops
These cards also lend themselves to a delightfully goofy Shark tribal theme with new cards like Sharkna