And it has been used in slower, control-oriented decks that seek to drain their opponents
They might not turn into bats (most of the time), but you see vampires hovering around the air in a menacing fashion more often than not
But your opponents can just tap their lands in response
Extra mana and potentially extra cards add up very quickly, enough that decks try to pack in extra answers to it
Time will tell if Lorcana 's Archazia's Island set will add more of these cards and whether Ink Geyser and similar effects will indeed see play in non-casual games, but considering how controversial mass land destruction is in Magic: The Gathering even in casual matches, this could be a ticking time bomb
Since Gunk cards are shuffled into players' libraries, those players should represent Gunk cards using objects that, while face down, are indistinguishable from other cards in their deck