Of course, good will alone wont win you the game, so Font of Mythos will only be a good fit in decks that know what to do with the extra cards they draw (or how to punish foes for being flooded with cards)
You can't bring back legendary creatures, and it's still overshadowed by the all-timer reanimation spells like Animate Dead and actual factual Reanimate
If all players in the game agree to it, that rule becomes true for this game
The graphic they added to the Mystery Booster packs had a square background, and the one they used for The List seems to have a rounded background, which creates a telltale difference in the shape of the cards border as you can see on Chatter of the Squirrel and Ancient Den as well as subtle changes in its placement on new border cards, as seen on Boros Challenger
Legendary Creature - Rogue Time Lord Saheeli's Directive Improvise (Each artifact you tap after you're done activating mana abilities pays for .) Reveal the top X cards of your library
If you cast Catch of the Day, you don't make any choices until it resolves