Doubling Season [Modern Masters] Duel Set: Dominaria Promos Type: Legendary

Set: Dominaria Promos Type: Legendary Artifact Mythic Cost: {0} {T}: Add one mana of any color among legendary creatures and planeswalkers you control

Karma deals damage to that player equal to the number of Swamps they control

Set: Commander 2014 Type: Instant Rare Cost: {1}{U} Return target nonland permanent you don't control to its owner's hand

untap all nonland permanents you control

destroy up to three target nonland permanents

Doubling Season [Modern Masters] Duel Set: Dominaria Promos Type: LegendarySet: Modern Masters Type: Enchantment Rare Cost: {4}{G} If an effect would create one or more tokens under your control, it creates twice that many of those tokens instead. If an effect would put one or more counters on a permanent you control, it puts twice that many of those counters on that permanent instead.