Frenetic Raptor

The drawback is bolted into the type line, which is the part that makes this design strange: a 6/6 attacker that hands you a board-wide "Beasts can't block" rider and then quietly notes that the card itself is a Beast. The clause is symmetric on paper and lopsided in play. Against an opponent stocked with their own Beasts, it strips their defense while your body crashes through; against anyone else, you have paid a real price (a 6/6 that can never sit back) for the chance the table is running the right subtype. That asymmetry is the entire wager, and it only ever resolves in your favor when the opposing board cooperates. This belongs to a small lineage of self-hosing tribal cards, the ones that grant a sweeping effect and then arrange for that effect to land on the controller more reliably than on the target. The body is what blunts the liability rather than erases it: a 6/6 with this much appetite for the red zone was going to spend its turns attacking regardless, so being barred from blocking subtracts less than the static text first implies. The reward, an enemy wall of Beasts told to stand down, stays theoretical until the metagame happens to fill the requirement.