Chainer, Dementia Master (Borderless Alternate Art) [Dominaria Remastered] 1HP183 you may pay R to

you may pay R to prevent 1 of that damage

they burrow into a host's brain to feed upon it

Set: March of the Machine Type: Legendary Creature — Ogre Demon Dragon Rarity: Rare Cost: {2}{U}{U}{B} Flying

While attached

Chainer, Dementia Master (Borderless Alternate Art) [Dominaria Remastered] 1HP183 you may pay R toSet: Dominaria Remastered Type: Legendary Creature Human Minion Rarity: Rare Cost: {3}{B}{B} Nightmare creatures get +1 +1. {B}{B}{B}, Pay 3 life: Put target creature card from a graveyard onto the battlefield under your control. That creature is black and is a Nightmare in addition to its other creature types. When Chainer, Dementia Master leaves the battlefield, exile all Nightmares.