World-Weary is a common Enchantment — Aura card from Modern Horizons 2 (MH2), collector number 348. Current market price: $0.14 (foil $0.18), TCGplayer market prices via Scryfall.
Enchant creature Enchanted creature gets -4/-4. Basic landcycling {1}{B} ({1}{B}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)