Complicate is a uncommon Instant card from Onslaught (ONS), collector number 76. Current market price: $0.36 (foil $12.82), TCGplayer market prices via Scryfall.
Counter target spell unless its controller pays {3}. Cycling {2}{U} ({2}{U}, Discard this card: Draw a card.) When you cycle this card, you may counter target spell unless its controller pays {1}.