Explore mechanics are most commonly found in blue and green, making it a natural fit to build a Merfolk deck around
Of the five "base" color combinations combining adjacent colors, this is, by far, my favorite combination for drafting a generic unknown environment such as a random Cube, as well as Abedraft, a draft with every card ever printed
Artifact - Spacecraft Growing Rites of Itlimoc When Growing Rites of Itlimoc enters, look at the top four cards of your library
Wizards has failed with its reprint sets over the past couple of years
These decks would presumably use something like Shuko or an il-Kor creature that can be used for free repeatedly in a turn to trigger his static ability
Dubbed "White Lightning" (due to its newfound similarity to Ball Lightning), Waylay was issued quick errata that allowed it to be cast only during the combat phase