If an older card that should have a clear blue core transmits light in a strange or inconsistent way, it may be a fake card
While I'm not sure it's possible for Wizards to reprint away the counterfeit card problem (but more on this in a minute), finally doing some things we've been talking about for a while would certainly help to alleviate some of the pressure
Sliver Weftwinder Sliver, it/its Born from innumerable cycles of sliver broods, cultivated atop vast graveyards of lost civilizations and over the course of epochs, an apex being emerged like nothing its predecessors had witnessed
Flavour words aren't new mechanics, but do evoke the feeling of Warhammer, such as on Abaddon's Mark of the Chaos Ascendant flavour word for his cascading ability
For what its worth, subsequent McDonalds promotion changed a lot of things, specifically going from a 50 card set (nonholo & holo versions of all 25 cards) to a 15 card set (9 nonholo + 6 holo cards), making getting and collecting a full set a lot easier AND ensures people dont need to buy as much
Attacking creatures are only considered unblocked after blockers have been declared