Its most strong when used on an opponents' draw step, so you can take the chance of exiling their draw on top of the copies from their deck
There's an argument against essentially forcing players to carry around periphery items to track their cards correctly, but innovations like dungeons and ability counters already do this to some degree
Rather, it is best answered by playing some games and testing the numbers
Verge Lands work best in decks where one color is more critical in the early turns than the other
It doesnt help that one of the prevailing strategies in recent years has been artifact tokens: Clues, Foods, Maps, Blood all of these casual strategies made Dockside a big red flag at Casual tables
As with our prior top 10 lists like this, we will only be using the base version of cards and wont be counting alternative artwork treatments (this prevents 40% of the list just being variants of Hidetsugu, Devouring Chaos)