In the Trenches is a mythic Enchantment card from Secret Lair Drop (SLD), collector number 1729. Current market price: $1.42, TCGplayer market prices via Scryfall.
Creatures you control get +1/+1. {5}{W}: Exile target nonland permanent you don't control until this enchantment leaves the battlefield. Activate only as a sorcery and only once.