Trystan's Command is a rare Kindred Sorcery — Elf card from Lorwyn Eclipsed (ECL), collector number 344. Current market price: $0.53 (foil $0.92), TCGplayer market prices via Scryfall.
Choose two — • Create a token that's a copy of target Elf you control. • Return one or two target permanent cards from your graveyard to your hand. • Destroy target creature or enchantment. • Creatures target player controls get +3/+3 until end of turn. Untap them.