Pokemon that appreciate bulky Grass-types gone such as Ash-Greninja, Zygarde, and Keldeo are good teammates because Landorus-T is easily able to bait them in and remove them. Late-game cleaners such as Mega Alakazam, offensive Trick Room Magearna, and Choice Scarf Garchomp find it much easier to clean up after Landorus-T heavily wears down defensive cores. Because Landorus-T often attracts Water-types such as Ash Greninja and Keldeo, Assault Vest Tangrowth and Magearna are both good options in order to safely pivot into their STAB attacks. Amoonguss and Toxapex are also good choices on bulkier builds. Spikes support isn't necessary but really appreciated, as it can potentially turn Landorus-T's 2HKOs into OHKOs and punishes Pokemon that may attempt to check Landorus-T. Greninja is a strong offensive user of Spikes that appreciates Landorus-T's ability to soften up Celesteela, while Ferrothorn can switch into Water-type attacks from the likes of Ash-Greninja, as well as Tapu Koko, which can revenge kill a weakened Landorus-T with Hidden Power Ice. U-turn and Volt Switch is very helpful for getting in Landorus-T safely and preserving its health. Ash-Greninja, Tapu Koko, and Rotom-W are all solid options, with the added advantage of baiting in Grass-types for Landorus-T to scare out.