Rex is Bonnie's toy and becomes a weapon used by the Cleric.
Bonnie takes Rex to Mason's house, where the Cleric later controls his robotic armaments.
They initially participate together as dinosaur warriors.
Trixie and Rex are armed as warriors in the Battlesaurs playset.
The Cleric converts Rex's equipment into a tool of coercion.
In the arena, the Cleric takes control of Rex's robotic armaments and forces Rex to seize Woody and Buzz.
Rex becomes an unwilling instrument against Woody.
Under the Cleric's control, Rex is forced to seize Woody.
Rex is compelled to restrain Buzz during the arena crisis.
Under the Cleric's control, Rex is forced to seize Buzz.
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