Whenever one or more cards an opponent owns are put into exile, put a release counter on The Heron Moon
A staple for control decks, this card is a reliable character removal tool, being able to send exerted characters to a player's Inkwell, an incredibly powerful ability which is difficult to counter
Karlov of the Ghost Council is a powerful commander, but this deck doesnt support gaining life in small increments often enough to use its powerful built-in removal ability
Either way, this is a deceptively powerful tool for any kind of slower deck
When I use the word "threshold" for the remainder of the article, unless I specify otherwise I'm talking about the class of cards.) The only real difference between them is what causes the swap from A to B
Gaining speed doesnt use the stack, so no one can respond to it