Rings of Brighthearth [Kaladesh Inventions] Shadows over Innistrad Prerelease Promos Sacrifice it at the beginning

Sacrifice it at the beginning of the next end step

and that player can't activate abilities that aren't mana abilities

Set: Coldsnap Type: Legendary Artifact Rarity: Rare Cost: {5} Spells you cast have ripple 4

whenever an attacking creature deals combat damage to you

one shouldn't underestimate its potential for the extraordinary

Rings of Brighthearth [Kaladesh Inventions] Shadows over Innistrad Prerelease Promos Sacrifice it at the beginningSet: Kaladesh Inventions Type: Artifact Rarity: Mythic Cost: {3} Whenever you activate an ability, if it isn't a mana ability, you may pay {2}. If you do, copy that ability. You may choose new targets for the copy. Crafted in emulation of dwarven hearth decorations, these devices doubled the output of Amrit Vatyam's forges.