It lets you reset with an additional draw on top, which can completely turn a game around if you were starting to struggle off the top of your deck
And gain power fromCrimson Vows Blood mechanic, with flavorful cards from Vampiric Bloodline
Like the original Moat, Teferi's Moat is a card that a large percentage of decks simply cannot beat, and it puts many others on only a handful of outs
This ability does not have a target
Time Walk (Alpha Edition) $26,400$63,000 PSA 10 Gem Mint Why It's Valuable: "Take an extra turn" for two mana
One point against it is that it improves G/W Devotion where it already excels (lategame inevitability, green mana symbols, clunky creatures)