The Beastmaster answers the plume from the smoke charges by engaging the servos tacked onto the outside of his frame. The systems lend the frame a surprising amount of speed, allowing it to accelerate well beyond what a normal mech is capable of. Crude thrusters engage on the brachial features of the frame's joints as its reposition ends, continuing the movement past Echo and behind a building. The Beastmaster levels the wide bore end of its rifle and looses a concussive shot across the cover it occupies. The round fragments and paints the cavern red, orange and yellow as it impacts with the shoulder of Echo's mech, the force of the blow shunting them away in an effusion of pattern-smoke, momentarily backlit by the light of the shells impact.

Spoiler: OOC
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On its turn the Beastmaster (Tier 1 Elite Strider), used its Reposition reaction to move its speed.
Quick action 1: it then boosted another 4 space
It then moved 4 spaces into the size 1 hard cover
Quick Action 2: The beastmaster then skirmished against Echo with its Explosive Rifle, hitting with an 11. It dealt 6 damage and knocked Echo back 3 spaces out of the smoke's soft cover.