Everflowing Chalice is a common Artifact card from Double Masters (2XM), collector number 254. Current market price: $0.35 (foil $0.46), TCGplayer market prices via Scryfall.
Multikicker {2} (You may pay an additional {2} any number of times as you cast this spell.) This artifact enters with a charge counter on it for each time it was kicked. {T}: Add {C} for each charge counter on this artifact.