>>39331127Pure Dragon. Have its ability specialize in boosting Fire, Electric, and Ice moves, allowing it to be proficient at aspects of all three Tao members
>>39331521Given how back in Gen V the sub-original dragon aka Kyurem-B/W was akin to being the strongest Dragon, I'd say this dragon should emanate it's role for being the strongest dragon. Stat distribution is the best stat of each member:
125 HP
170 Atk
120 Def
170 Sp Atk
120 Sp Def
95 Spd
BST: 800
For potential balance, allowing this pokemon to be forced to hold an item to work can balance it, or it can be Fug number 2 and be allowed items to function, and thanks to its meddling speed stat, potentially function in a more balanced manner (though I doubt it). For moves, it has access to at least Fusion Flare, Fusion Bolt, and a buffed version of Glaciate, and if you want to make it broken, Blue Flare and Bolt Strike. It has incorporations of most of the movepool of the three, having Psychic, Rock, Ground, Steel, and general Fire, Electric, Ice, and Dragon coverage.