Keening Stone (Retro Schematic) (Serialized) [The Brothers' War Retro Artifacts] Illusion The system can be changed

The system can be changed from within

Set: Strixhaven: School of Mages Promos Type: Sorcery Rarity: Mythic Cost: {X}{X}{X}{R}{R} Crackle with Power deals five times X damage to each of up to X targets

When you attack with three or more creatures

you may spend mana as though it were mana of any type to pay that spell's mana cost

its controller chooses target permanent another player controls that shares a card type with it

Keening Stone (Retro Schematic) (Serialized) [The Brothers' War Retro Artifacts] Illusion The system can be changedSet: The Brothers' War Retro Artifacts Type: Artifact Rarity: Rare Cost: {6} {5}, {T}: Target player mills X cards, where X is the number of cards in that player's graveyard. "The new prototype utilizing a rotational axis is marvelously effective: it makes me want to tear my own ears off." Ashnod, to her assistants