Juggernaut

Juggernaut attacks each combat if able.
Juggernaut can't be blocked by Walls.
"On Dumarin they preserve peace. It might be
centuries between uses Mainly because everyone
knows they have it parked right to and it can be
set off in minutes bashing through anther's city's
gate to start rolling over everyone in mere hours."
- Saheeli Rai.