Castle Garenbrig (Extended) [Throne of Eldraine] 024 you may discard a card

you may discard a card with cost 0

Set: Jungle 1st Edition Type: Water Rarity: Rare Retreat cost: Colorless

Set: Oath of the Gatewatch Prerelease Promos Type: Creature — Eldrazi Rarity: Rare Cost: {3}{C} ({C} represents colorless mana

Note the number and kind of counters that were on that creature

Set: Limited Edition Beta Type: Enchantment Rarity: Uncommon Cost: {2}{W}{W} At the beginning of your upkeep

Castle Garenbrig (Extended) [Throne of Eldraine] 024 you may discard a cardSet: Throne of Eldraine Type: Land Rarity: Rare Castle Garenbrig enters the battlefield tapped unless you control a Forest. {T}: Add {G}. {2}{G}{G}, {T}: Add six {G}. Spend this mana only to cast creature spells or activate abilities of creatures.