Spark Elemental is a uncommon Creature — Elemental card from Tenth Edition (10E), collector number 237. Current market price: $0.36, TCGplayer market prices via Scryfall.
Trample, haste (This creature can deal excess combat damage to the player or planeswalker it's attacking. This creature can attack and {T} as soon as it comes under your control.) At the beginning of the end step, sacrifice this creature.