cards like silence mtg Linvala, Keeper of - #1 Ultimate Proxy Destroy target artifact or enchantment. 5 More Silences and Grand

Instead of four-color printings, a traditional foil card takes eight or more to account for printing over this WUP layer

Put a +1/+1 counter on up to one target creature you control

Because this is weaker than what we give to black (more on this in a second), blue gets to remove more cards from the library than black

Modern Horizons 2 brought the mechanic back for a few designs, and the mechanic finally came back in Neon Dynasty with most of the current channel cards

Genesis 2.0 This is a slow card, very very slow, the name suggests it too, rather like thawing glaciers, which is another slow old card

Being able to go off the rails and do a bunch of weird stuff is refreshing in a way, sort of like Marvel's "What If..." series