You may be tempted to hold onto Aladdin, Heroic Outlaw, Mad Hatter - Gracious Host, Steal From The Rich, or Stitch - Abomination at the beginning, but you really need cards that can help you fight for the board early on
If Essence Channeler is dealt lethal damage at the same time that you gain life, it won't receive a counter from its second ability in time to save it
Looking at graphs dating back to October, when Verhey first hinted at potential unbans coming in April, we saw Sway of the Stars jump from less than a dollar to around $2.50, with a steady and slow build to $4 after that
January 02, 2017's final spoilers are from PureMTGO, Windmill Slam, and Cardshop Hamaya
For example, in Urza's Destiny (the set where I was the entire design team), there were two different cycles that explored effects that scaled based on how many cards of a certain color were in your hand