SETUP THREE. I don't think Equisde actually has 12 armor.
But yeah this thing kills itself at the slightest touch. It's ramming damage is (11+4)/2 = 7.5 = 8. With 2 armor, that means if it has a full-speed collision with literally anything, it'll take 6 self damage (ramming doesn't grant armor bonus) and I suspect several of its drive motors will die on the spot if it impacts. That little bit of the wheel that extends over the skirt also means it'll take ramming damage from hitting my robot instead of just completely sliding under.
"But Noah!" You may ask. "What if he doesn't have
to drive at full speed??" The slowest he can drive is 75% of his top speed, which is (8+4)/2 = 6, AKA 4 self damage at the very minimum. Yikes. That, and the fact that my poker will add some damage if I time it correctly. If he's likely to collide with my front, then I fire the piston.
Overall, just... don't try anything too aggressive. Like, at all. All he has to do to lose is to accelerate to 75% speed. I just have to sit there, look pretty, and don't wind up on top of his chassis. Only fire the hammer if I'm absolutely certain it'll hit. Otherwise, don't bother.
Did I mention mech wheels become useless after losing a single wheel? He's got 12 or whatever. Those all aren't staying attached and functional for 3 minutes.