Great Wroggi

Poisonous 2
For every Wroggi under your control, Great
Wroggi gets a +1/+1 counter.
Bird wyverns that spit a poisonous mist. Wroggi travel
in packs that are led by the largest and most
toxic member. The poison is made in a sac like organ
around its throat; if this is destroyed, the creature's
ability to spit is impaired.