Mount Doom's final ability is a board wipe that will only spare two creatures, leaving the player with two attackers on an otherwise empty board
These storied slimes may be few in number, but they make up for it by dripping, quite literally, with power and flavour
White is good at going wide, so having a two drop that can buff the whole board is something you're going to be after
SPOILER: Click to show Source: From @cinnaminhbun 's collection These Thin stamp non-Holos arent as thin as the Thin Holo Rares, but still thinner than a regular Thick stamp
They resolve even if that spell is countered
It's a great way to slow your opponents down, especially since there are a lot of decks that rely on needing to search their library to get their key cards