Now, not every card is available in every treatment, so I'll start with a look at the various booster products and how they are structured, then do a style-by-style breakdown of where everything can be found
Sliver Queen is the ultimate casual critter, and Volraths Stronghold is one of the best lands in Commander
This is a little overcosted, but being a 4-mana noncreature spell and an Equipment has serious value in this set
You can also add Goblin Anarchomancer to make your cards cheaper, giving you access to huge spells like Old Gnawbone or Hellkite Tyrant as early as turn three with the right amount of Treasures
Take a look at the cards in the gallery above
Even having just one of these creatures in play lets you cast spells you wouldnt normally be able to or psyche your opponents into playing into your own counterspells while thinking you dont have the available mana open