The Freebies Lets get the easiest reprints out of the way first
When it comes into play, all your creatures gain +X/+X for the turn, with X equalling the number of creatures you control
I actually dont think that General Kreat offers much as a commander, but shell go great in the 99 of decks such as Krenko, Mob Boss or Purphoros, God of the Forge that are already looking to throw massive amounts of tokens onto the battlefield to finish off opponents
Ian Malcolm Collection Jurassic World : Dr
A creature's training ability triggers only when both that creature and a creature with greater power are declared as attackers
Although the Human tokens created by the triggered ability are attacking, they were never declared as attacking creatures (for the purposes of abilities that trigger whenever a creature attacks, for example)