The alternate commander here, Yuna, is very strong too and with a few tweaks to let you untap her multiple times per turn, she can turn this precon into quite a nasty combo deck
If the enchanted player somehow has more than two main phases in a turn, each main phase other than the first one is a postcombat main phase, and Shadow of the Second Sun's ability triggers at the beginning of each of them
There are many individual card synergies and you must change your evaluation of cards during draft based on your current picks
There are many ways to infinitely flicker a creature, so the right deck could use this to decimate an opponents board
Other card draw spells require sacrifice, such as Ravenous SquirrelRavenous Squirrel, Plumb the ForbiddenPlumb the Forbidden, and Deadly DisputeDeadly Dispute