Standard is now at a level where only two types of cards seem to see play: new cards that make an existing archetype stronger, or cards that are so strong that they can break through in much more powerful formats
Others are less picky and work with instants and sorceries, like Stella Lee, Wild Card and Ral, Monsoon Mage / Ral, Leyline Prodigy
Can You Lose to Mill
Estinien Varlineau Estinien Varlineau is an Orzhov card-draw engine that benefits from flying creatures, specifically dragons
These rarely cost the full amount, but still fulfill Herald's condition for dealing damage to your opponents
At the Modern Open at SCG Indianapolis, Oliver Tomajko, for example, finished highest among Urza decks with Urza Ascendancy, as a Jeskai deck that splashed green for four sideboard cards, three of which were Oko