Rings of Brighthearth [Kaladesh Inventions] Planechase Anthology put it into its owner's

put it into its owner's graveyard

You may cast spells with the same name as that spell from among the revealed cards without paying their mana costs

At the beginning of the end step

the controller of the permanent it becomes sacrifices it at the beginning of the next cleanup step

When Ancestral Knowledge enters the battlefield

Rings of Brighthearth [Kaladesh Inventions] Planechase Anthology put it into its owner'sSet: 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.