$0.06
Bitterblade Warrior 
Creature — Jackal Warrior
Amonkhet Common
You may exert Bitterblade Warrior as it attacks. When you do, it gets +1/+0 and gains deathtouch until end of turn. (An exerted creature won't untap during your next untap step.)
"The vizier of poisons teaches an unconventional kind of strength."
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#157 — Illus. Slawomir Maniak