Effect-wise, other than the rather seldom-seen-in-regular-sets die-rolling, Poultrygeist isn't actually super wacky
Each opponent who attacked with a creature this turn can't cast spells
I also really like the artwork for Anarchy, featuring a very nice artwork showing the change of environment as the shaman casts his spell -- volcanic temperate climate on one half, and featureless snow on the other
Its easy to look at Gargos, Vicious Watcher, Animar, Soul of Elements, or Kruphix, God of Horizons with each of their different ways of supporting the hydra tribe and wish that there could be one unifying general tying them together
Giada is a 2/2 flying Angel with vigilance
2 Trainer before it, this card was never available at retail