Grond, the Gatebreaker
Most Vehicles ask for a body to crew them and give nothing back until they roll; this one carries a second animation clause that quietly rewards a specific build. The crew cost is the standard route: tap total power three, swing a 5/5 trampler. But the middle line does something Vehicles almost never do, turning the artifact into a creature on your turn for free the moment you control an Army. That condition points straight at Amass, the token-generation mechanic that builds a single growing Army creature, and it lets the card attack unaided wherever that plan is already in place. The wrinkle is the timing: the free animation only holds during your turn, so the trample body vanishes on defense, and the crew cost is still there to cover the turns your Army has died or hasn't arrived. That split personality is the point. It functions as a self-crewing threat in the Army shell it was built for and reverts to an ordinary crew-3 Vehicle everywhere else, so it never becomes a free 5/5 in a deck that can't meet the condition. The name and the siege-engine framing do real work here: this is a battering ram, a thing that wants to be pointed at something and pushed through, which is exactly what trample and a self-animating attack step deliver.
