One way that players answer a Merciless Eviction is to sacrifice their team to something like Viscera Seer or Goblin Bombardment and then they just recur their stuff later, but now if they do that they'll just get exiled from the graveyard as well on resolution
They do come back with a finality counter on them, so if they get removed, they'll be exiled
There are six to choose from, Emerald, Ruby, Amber, Amethyst, Sapphire, and Steel, and each type has different characteristics for its cards
It just sits there, recycling lands and slowly turning small advantages into a very annoying inevitability
The Madness mechanic debuted all the way back in Torment (2002) and is one of the least intuitiveand most powerfulmechanics in Magics history