Moonhold is a uncommon Instant card from Eventide (EVE), collector number 143. Current market price: $0.22 (foil $1.53), TCGplayer market prices via Scryfall.
Target player can't play lands this turn if {R} was spent to cast this spell and can't cast creature spells this turn if {W} was spent to cast this spell. (Do both if {R}{W} was spent.)