Confidence:StrongSolidPlausibleTentativeSpeculative

• Shifting Woodland

  LandG

  Graveyard copier: one card stocks the graveyard (mill, surveil, dredge) and the other can repeatedly become a copy of a card that's there, borrowing its abilities without recasting it — the Shifting Woodland + Aftermath Analyst shape.
• Rings of Brighthearth

  3

  ArtifactC

  Crop Sigil has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.