Lethal Sting

Put a -1/-1 counter on target creature you control. if you do, put five -1/-1 counters on target creature you don't control.
"The legend says the first passers of the plague were the scorpions, their infected stings turning the humans, demons and kor they stung into the Zekalus the prophet. Later on the natural bugs from the plane of Zendikar ate those scorpions turning into vessels of the plague themselves" Nissa, voice of nature