Dominaria's Judgment is a rare Instant card from The List (PLST), collector number PLS-4. Current market price: $0.21, TCGplayer market prices via Scryfall.
Until end of turn, creatures you control gain protection from white if you control a Plains, from blue if you control an Island, from black if you control a Swamp, from red if you control a Mountain, and from green if you control a Forest.