Possibility Storm resolves first, giving you a different, random artifact from your deck for free
Being an unblockable creature with the potential of doing three damage each combat, just leaving the mana up can be enough to scare an opponent into acting - even if activating them is a little expensive
On her own, shes already annoying, a two-turn Dig Through Time glued to a three-mana planeswalker
You've got 40 creatures (aside from your commander) and 39 lands to ensure a decent opening hand
Or drop Enchanted Evening and then all your creatures are enchantments too
Weve already seen two of the three commanders in the box: the face commander, Perrie, the Pulverizer, puts shield counters on creatures before buffing your entire side of the board with +X/+X, where X is the number of types of counters you control