Mini Tank

In Gaming terminology, Mini Tank is a unit with high Hit-point, though not as "beefy" as a regular tank, Mini Tank main function is as a quick response in distracting enemy's unit and shielding the supporting troops as a meat shield for not quite as long but with cheaper cost

Example (Clash Royale)
Giant/Golem is a tank
knight/Ice Golem is a mini tank
Musketeer/Wizard is a supporter