delta species pokemon cards Tyranitar-Holo 2005 Pokémon EX #16 PSA 3– Holo Pokémon Card Water Wet Claw (40) Put an Energy attached to your opponents Active Pokémon into their hand. Dragonite δ | EX Delta

You can read the whole story here, back from when Wizards initially banned the equipment in Standard, but the short version is that Skullclamp was changed from giving the equipped creature +1/+2 to +1/-1 late in development and slipped through the cracks

And in the case of Invasion tri-lands, you might only get full value by sacrificing them, losing a potential land drop in the process

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

At the beginning of your next upkeep, discard three cards at random