Let's come back to the text: postcombat main phase isn't this main phase where you want to play many of your spells anyway
In my third game of Commander, I switched to a life gain deck (Eriette of the Charmed That speaks to the design of MTG: Duskmourn
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Cool card, and something that I can see someone wanting to build around in EDH
4 Deadly Cover-Up Wipe The Board And Your Opponents Memory Sometimes very specific effects in Magic can only see the light of play when they come attached to other, more maindeckable cards