Dark Ascension 's Drogskol Captain At first, we were hesitant to include Spirits or Zombies in this article, as they're dead and triumph seems to be an alien concept to those with literally nothing to lose but their soul/body (this comes up again with our entry for Shadows Over Innistrad )
Green Dragon Ninja Can Negate 1 Spell or Trap card per turn (Hard Once per turn) and thus makes a good pair with Mitsu the Insect Ninja, who can negate 1 Monster Effect per turn, or with Rank 2 Ninja Shadow Mosquito, who can the Negate the effects of Monsters which have Hallucination Counters, And Lastly, Paired up with Blue Dragon Ninja, who can also Negate 1 Monster Effect per turn
While there are other strong infect creatures like Blight Sickle or Glistener Elf that can also fit this strategy, Viridian Betrayers' ability to deal damage in the form of -1/-1 counters adds versatility against creature-based decks
As an added bonus, it fulfilled the wish of many fans by not evolving into a bipedal Pokmon