Rootcoil Creeper is a uncommon Creature — Plant Horror card from Innistrad: Double Feature (DBL), collector number 238. Current market price: $0.35 (foil $1.33), TCGplayer market prices via Scryfall.
{T}: Add one mana of any color. {T}: Add two mana of any one color. Spend this mana only to cast spells from your graveyard. {G}{U}, {T}, Exile this creature: Return target card with flashback you own from exile to your hand.