They fit sleeves fine
Racing six life gain a turn is unlikely, attacking productively through the Wurmcoil is near impossible without evasion
You can play a card like Black Mage's Rod on turn two, but you're often reluctant to trade because you'll lose your triggers, and it's too expensive to equip later to continue to accrue triggers
While there is now some discussion over the best Bob, given that we now have Dark ConfidantDark Confidant, Keen DuelistKeen Duelist, and the newly minted Caustic BroncoCaustic Bronco, there's no question that this deck and many others like it will want several of them
Agadeems Awakening / Agadeem, the Undercrypt Another MDFC of sorts, Agadeem's Awakening is particularly strong in decks with lots of small creatures
As long as you're not the first player, you can start the game with it already on the battlefield with a counter on it to allow it to tap for any colour