Who is the best tank in the game?

Tsubaki holds this title. Her EX skill boosts her DEF while also taunting nearby enemies, a self-heal that triggers at 30% HP (once per battle), another DEF boost basic skill, and finally, another skill that reduces incoming damage while she’s reloading. Include a healer in the same team as her and Tsubaki will be able to perform her role even longer. She excels in both Urban and Field terrains, but will suffer when fighting indoors.