Oko, Thief of Crowns At some point, every Magic format collectively asked the same question: Why is everything an Elk? Oko, Thief of Crowns , arrived quietly, then proceeded to flatten entire metagames like it was his full-time job
Wall of Denial
1 Deadly Dispute
Nevertheless, Dig Through Time, like Treasure Cruise, was extremely powerful in Standard, very pushy but overall a really positive contribution to the format that helped make Khans of Tarkir one of the best-designed sets the game has ever seen
Plusses can occasionally have removal, particularly on higher-costed planeswalkers, but almost always conditional
Since it has flash, so long as you have the mana for it, you can cast it