Its impact was primarily felt in Legacy, with decks like 8-Cast and Patchwork Stompy utilizing the Cannoneer as both a beater and a finisher
Cycling your hand and getting 3 things for it is amazing though, and there's tons of ways to turn discarding into even more cards, or you may want to fill your yard for reanimation or to win off Underworld Breach
Notably, it's strictly better thanks to only costing a single red mana
Simple cantrips like Opt and Preordain become powerful card draw spells, and since Matoya doesnt have a once per turn restriction, you can draw cards throughout your turn with effects like Search for Azcanta, Retreat to Coralhelm, and Palantr of Orthanc
Yawgmoth, Thran Physician has to be among the most broken cards in the set for the WB sac archetype, and its also has a fairly high floor in general