Giant Slug [Legends] Harpy Beast Set: Planechase Anthology Planes Type:

Set: Planechase Anthology Planes Type: Plane — Dominaria Rarity: Common All creatures have "{T}: Add {G}{G}

Set: Magic 2014 Type: Enchantment Rarity: Rare Cost: {3}{R} Whenever a player taps a nonbasic land for mana

You have to admire its enthusiasm

Set: Premium Deck Series: Slivers Type: Creature — Sliver Rarity: Common Cost: {1}{B} All Slivers have "{2}: Regenerate this permanent

Giant Slug [Legends] Harpy Beast Set: Planechase Anthology Planes Type:Set: Legends Type: Creature Slug Rarity: Common Cost: {1}{B} {5}: At the beginning of your next upkeep, choose a basic land type. Giant Slug gains landwalk of the chosen type until the end of that turn. (It can't be blocked as long as defending player controls a land of that type.)