Wirewood Cutthroat

Ascend
You may exert Wirewood Cutthroat as it attacks. When you do, it gains first strike until end of turn. If you have the city's blessing, Wirewood Cutthroat gains first strike and deathtouch instead.(An exerted creature won't untap during your next untap step.)
"Live and learn. Learn what lives.
Then learn how to kill it."