Mateo threatens with high HP along with decently high defenses, and although his ATK is initially somewhat low, he makes up for it with a variety of offensive tools that can put the pressure on Operators while coordinating his troops to assist him.
While not blocked, Mateo will use a Straight Shot in which he fires a burst of 10 shots from his weapon, with each shot dealing Physical damage equal to his ATK and the last one permanently reducing the target's DEF by 100 (150 at Level 1) which can stack without a limit. The Straight Strike has a cooldown of 8 seconds and Mateo is immune to Stun, Freeze and Levitate while carrying it out.
While blocked, Mateo uses a melee attack which deals 2.5× damage against anything but Barricades.
When his HP is reduced to 0 for the first time, Mateo will survive and leave the map through a zipline before reappearing at a specific position on the map if he has not reached it already after 3 seconds with his HP fully restored and him entering the second phase with the following traits:
Loses the Straight Shot ability.
ATK increased by 150% and attack interval increased by 1 second.
Reduces Physical and Arts damage taken by 40% while not blocked.
"Lights Out!": When taking damage, Mateo throws out three smoke bombs 1, 3, and 5 tiles ahead of him, with each creating a smokescreen over a radius of 1.3 tiles that renders enemies within invisible and lingers for 30 seconds. Mateo can only use "Lights Out!" once at first, and he is immune to Stun, Freeze and Levitate while using it.
"Stand Down!": Mateo's attack Stuns the target for 6 seconds, but he can only use this 6 times at first, indicated by a purple counter beneath his health bar.
"Attention!": Orders all Mateo's Bodyguards present on the map to head towards Mateo's position, ignoring checkpoints in their path, and stay there for 30 seconds upon arriving. "Attention!" has a cooldown of 10 seconds after Mateo enters the second phase and 25 seconds after.
