mtg phase cards How does phasing out work in Magic: The Gathering? What's a good strategy with

Note that since the permanents become the target, this wont trigger any sort of ETB effects.

Scourge already gets a +1/+1 counter for attacking the player on the throne, but an entire extra combat is a huge bonus

Know which tutors fetch the cards you need for your combo, and take mana sources that will help you cast them should you come across one later in the draft

But again, what does it actually do

Thanks to being hella busy and experiencing soul-crushing variance while playing the precon, I never found myself reaching for it

To make things more confusing, some cards in certain Commander sets could only be found in the (non-draftable) boosters for the main set, and not in the accompanying precons