34 cards where the card is tagged “synergy-activated-ability”

Agatha's Soul Cauldron (Wilds of Eldraine #242)
Castle Garenbrig (Throne of Eldraine #240)
Ceaseless Searblades (Lorwyn #158)
Crackdown Construct (Aether Revolt #148)
Crucible of the Spirit Dragon (Forgotten Realms Commander #231)
Cryptic Trilobite (Commander 2020 #21)
Dalakos, Crafter of Wonders (Theros Beyond Death #212)
Dynaheir, Invoker Adept (Commander Legends: Battle for Baldur's Gate #273)
Eldrazi Temple (Commander Masters #992)
Ertha Jo, Frontier Mentor (Outlaws of Thunder Junction #203)
Grand Architect (Double Masters #53)
Gwenna, Eyes of Gaea (The Brothers' War #185)
Hargilde, Kindly Runechanter (Universes Within #5)
James, Wandering Dad // Follow Him (Fallout #31)
Laboratory Drudge (Commander Legends #78)
Lukka, Bound to Ruin (Phyrexia: All Will Be One #207)
Magewright's Stone (Dissension #162)
Myr Reservoir (Scars of Mirrodin #183)
Omen Hawker (March of the Machine #70)
Orb of Dragonkind (Adventures in the Forgotten Realms #157)
Osgood, Operation Double (Doctor Who #191)
Power Depot (Modern Horizons 2 #251)
Renowned Weaponsmith (Commander Masters #114)
Slobad, Iron Goblin (Phyrexia: All Will Be One #149)
Smokebraider (Modern Masters 2015 #125)
Soldevi Machinist (Masters Edition IV #63)
Sole Performer (Unfinity #154)
Tazri, Stalwart Survivor (March of the Machine: The Aftermath #6)
The Enigma Jewel // Locus of Enlightenment (The Lost Caverns of Ixalan #55)
The Enigma Jewel // Locus of Enlightenment (The Lost Caverns of Ixalan #55)
Thousand-Year Elixir (Commander 2021 #271)
Tyvar, Jubilant Brawler (Phyrexia: All Will Be One #218)
Tyvar the Bellicose (March of the Machine: The Aftermath #48)
Vedalken Engineer (Neon Dynasty Commander #100)
Zirda, the Dawnwaker (Ikoria: Lair of Behemoths #233)

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