Espeon (48/108) (National Championship Promo) [Black & White: Dark Explorers]Set: Black & White: Dark Explorers Type: Psychic Rarity: Rare Retreat cost: Colorless

Set: Neo Destiny 1st Edition Type: Lightning Rarity: Holo Rare Retreat cost: Colorless

add 1 "Harpies' Hunting Ground" from your Deck to your hand

Set: XY: Roaring Skies Type: Dragon Rarity: Holo Rare Retreat cost: Colorless

Set: EX: Legend Maker Type: Fighting Rarity: Ultra Rare Retreat cost: Colorless

They're still lands

Set: Sun & Moon: Team Up Type: Colorless Rarity: Ultra Rare Retreat cost: Colorless

you may pay [1 Resource] instead

Set: POP Series 4 Type: Fighting Rarity: Rare Retreat cost: Colorless

Set: XY: Ancient Origins Type: Darkness Rarity: Ultra Rare Retreat cost: Colorless

Set: Sun & Moon: Dragon Majesty Type: Dragon Rarity: Ultra Rare Retreat cost: Colorless

If that mana is spent on an instant or sorcery spell

Set: Zendikar Expeditions Type: Land Rarity: Mythic {T}: Add {C}