Abnormal

Deviant type titan
The deviant type (also called abnormal ones) are a rare type of titan

who ignores humans and go to important locations to cause big damage.

History
this type of titans displays an strange kind of intelligence, they do not mindless attack humans or try to kill them, they simply run away from they and cause damage in important areas---how this type know where to attack still a mistery as the titans themselves.

this type only apperared in two chapter so far. after the collosal titan second attack and the titans get inside and the humans forces take action. a deviant type appears running heading for a tunnel stuck of humans, the soldiers can´t reach him until mikasa appears and kill it before gets to the people. almost all the soldiers from the walls go beyond the walls to find eren´s house, but in the way a deviant type suddendly appears running. armin and another soldier are forced to fight him cutting his tendons of his foot making him fall and stabbing it on the neck