>>29908104Dragon/Flying with the most broken Mega Evolution.
Ghost/Dragon and great bulk.
Ice/Dragon and the third highest attacking stats at 170 with Fire- and Electric-type moves for coverage.
Dragon/Ground with a form that needs to be at 50% HP to activate and only its HP increases, 4 Signature Moves from which only two are useful, it had to wait until next gen to obtain its new formes, is the master of its trio and can't touch Xerneas or Yveltal with one of its STABs (at least Thousand Arrows can hit Flying-type and Levitate users), and it loses to Xerneas after one Geomancy.
Necrozma is another Psychic-type legendary, implying we need more. Its Signature Move is as useful as Jirachi's, Deoxys', Dialga's, Regigigas', Cresselia's, Kyurem's, Black Kyurem's, White Kyurem's, Meloetta's, Genesect's, and Zygarde's Land's Wrath and Core Enforcer.