Dig Through Time is a more powerful effect than Fact or Fiction, it is castable faster and usually leaves you more mana spare to do other things with as well
Sometimes, Carpet of Flowers can make lots of mana every turn, making opposing copies of Daze completely useless
(Jace, Telepath Unbound) A: Then you can cast either half from your graveyard, but not both
In draft and deckbuilding, cards with low risk can make more volatile cards less playable: Shock can be cast any time its owner has priority, but Prey Upon isnt guaranteed to have two legal targets, so a win-motivated drafter choosing between the two will tend to prioritize Shock
I would anticipate seeing Clan CrafterClan Crafter in the 99 of a lot of blue artifact decks
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