[Arixon]

Supadoodle doo. From what I know, there are three good tank Pokemon. These being Shiny-Mega-Giratina, Shiny Blaggron, and Shiny-Mega-Lugia.

The tank builds of these Pokemon is displayed below. I will update this thread with their moves on a later date.

Stats: Shiny-Mega-Giratina
Nature: Relaxed (-10% Speed, +10% Defence) or Sassy (-10% Speed, +10% Sp.Defence)
Item: Ghost Orb
EVs: 

•  Def: 252
  
•  Sp.Def: 252
  
•  HP: 6
  

Stats: Shiny Blaggron
Nature: Sassy (-10% Speed, +10% Sp.Defence)
Item: Defense Armor
EVs: 

•  Def: 252
  
•  Sp.Def: 252
  
•  HP: 6
  

Stats: Shiny-Mega-Lugia
Nature: Relaxed (-10% Speed, +10% Defence)
Item: Flying Orb
EVs: 

•  Def: 252
  
•  Sp.Def: 252
  
•  HP: 6