Aphelia, Viper Whisperer (Anime) #40

Deathtouch Whenever Aphelia attacks, you may pay 1(B/G). If you do, create a 1/1 black Snake creature token with deathtouch. 4B: Until end of turn, whenever one or more Gorgons and/or Snakes you control deal combat damage to a player, that player loses half their life, rounded up.