Cacophony Scamp

A one-mana body that wants to be blocked, killed, and swung with all at once, which is the neat trick of the design. The two abilities look like they pull in opposite directions until you see how they chain: connect for combat damage, sacrifice it to proliferate, and because that sacrifice is a death, the death trigger fires and throws the creature's power at any target. The sequencing is fixed, though, and it matters. The proliferate happens as a consequence of the sacrifice, so the goblin is already in the graveyard when counters grow; it cannot pump itself in the process, and its death-ping uses its last power on the battlefield. That closes off the tempting loop but sharpens the real one: proliferate spreads counters across everything else you have while the ping resolves off whatever power you managed to build before the attack. The load-bearing restriction is the power clause. At a base 1/1 the death-ping is trivial, so the card only becomes an engine to the extent you can raise its power ahead of the swing, whether with counters or other pumps, before you cash it in. That turns the attack step into a timing decision: swing now for a small ping and an early proliferate, or hold and stack power for a larger one. The Phyrexian framing is flavor skin over a tightly wound piece of red aristocrats design, one that asks you to treat combat damage, sacrifice, and a death trigger as a single sequenced play rather than three loose abilities.