Loxodon Smiter is a rare Creature — Elephant Soldier card from Return to Ravnica (RTR), collector number 178. Current market price: $0.26 (foil $0.91), TCGplayer market prices via Scryfall.
This spell can't be countered. If a spell or ability an opponent controls causes you to discard this card, put it onto the battlefield instead of putting it into your graveyard.