It was presented to the top players in a tournament that took place in 2018, although no one knows how many of them there were
If you think that Zendikar to date has a strong showing for this creature type, you would be correct - Vampires are by far the most have most the numbers with the single exception of the Kor
(In other words, it doesn't just mean "protection from objects that have all five colors.") (2011-01-01)
Moving down the list, there's a cycle of five three-colored mythic rare Dragons
Chain can be used as intended if you want, but I use it as Light-attribute banish fodder for Chaos Ruler
destroy as many cards as possible equipped to that monster you control, and if you do, that monster can make a second attack in a row