if your pod will struggle to deal with a fully tricked-out Dinosaur, then hold back and just cast the creature you have with either indestructible or hexproof, and allow the window of opportunity for opponents to interact with your commander, especially if its early in the game
WotC usually makes Starter Kits that are Standard-legal at the time of their release, and naturally theyll rotate out of Standard at a given point
Atraxa, Grand Unifier is the kind of card that makes people quit as soon as you play it or cheat it onto the battlefield
I think this is why UB is the deck every drafter seems hellbent on getting into I havent seen either of its uncommons passed to me before pack three in over 10 drafts
The best way around the dangerous Skullcrack/Command is to pair Feed with hand disruption (Inqusition of Kozilek is great, Thoughtseize is a bit worse) or countermagic (Dispel, Spell Pierce, etc.)
Enchantress decks draw lots of cards, play lots of spells, and are tons of fun