Case of the Ransacked Lab MKM 0045 · rare

Case of the Ransacked Lab · {2}{U} · Enchantment — Case · Instant and sorcery spells you cast cost {1} less to cast. To solve — You've cast four or more instant and sorcery spells this turn. (If unsolved, solve at the beginning of your end step.) Solved — Whenever you cast an instant or sorcery spell, draw a card.