If you gain control of an equipped creature, the equipment is still attached, but you dont control the equipment itself
11 Strength-Testing Hammer (Galaxy Foil) - $7.66 Speaking of dice rolling, Strength-Testing Hammer buffs the equipped creature by a random amount depending on how generous the luck of the dice is feeling when the equipped creature attacks

Aether Syphon Baxter, Fly in the Ointment Burlfist Oak Chasm Skulker Clinquant Skymage Diviner's Wand Dream Trawler Hoofprints of the Stag Horizon Chimera Human Torch, Johnny Storm Iron Man, Armored Avenger Jace's Erasure Jace's Projection Kianne, Corrupted Memory Lorescale Coatl Lyla, Holographic Assistant Moonring Mirror Nadir Kraken Niv-Mizzet, Parun Niv-Mizzet, the Firemind Ominous Seas Oneirophage Psychic Corrosion Psychic Network Psychosis Crawler Queza, Augur of Agonies Shabraz, the Skyshark Shang-Chi and the Ten Rings Sheoldred, the Apocalypse Sliv-Mizzet, Hivemind (playtest) Sphinx's Tutelage Stark's Ingenuity Starscream, Power Hungry Starving Revenant Teferi's Talent Teferi's Tutelage Teferi, Hero of Dominaria Teferi, Temporal Pilgrim Temmet, Naktamun's Will The Astonishing Ant-Man The Locust God The Watcher in the Water Tolarian Kraken Toothy, Imaginary Friend Vodalian Wave-Knight Wizard Class

Modern Format Modern allows cards from Eighth Edition forward, creating a much larger card pool with powerful interactions
The mono-white version of Cloud focuses on Equipment, triggering his own and his Equipments' abilities an extra time, allowing you to double-up on benefits and build Cloud into an unstoppable behemoth
The self-mill sagas are probably a more moderate option to start with, along with the beautifully-illustrated Torment cycle of Hypochondria, Mortiphobia and Narcissism