Description: A lighter-colored walking tree wielding a branch which is capable of creating a whirlwind than stuns those caught within, or just being used to whack you.
Strategy: Unlike their Gru cousins, Sesbaramu do not block. Unfortunately, those stunning whirlwinds have respectable reach. Do not allow yourself to be caught between two or more of these guys, because if one hits you, they'll likely stun-lock you until you escape or perish. Fortunately, their whirlwind attack is easy to see coming and have a long startup time; interrupt it with an attack whenever possible.