You wont be punished by having a full sideboard, so you dont need to play around that
(Put two +1/+1 counters on it or create a 2/2 white Spirit creature token.) If Anafenza dies at the same time as one or more other nontoken creatures you control, Anafenza's last ability triggers for each of those other nontoken creatures
Despite that, a 12/12 for ten generic mana is incredibly powerful and the fact it isnt banned in Commander like Emrakul probably helps keep its price up
I would argue that the Jurassic World Collection is much higher-impact in terms of enabling powerful Dinosaur decks
Cosmic Rebirth The immortal decree, returning any lost fortress, at the most crucial moment
On attack, it forces an opponent to sacrifice a creature, and if they do, you get a 2/2 Zombie token for your trouble