Players can summon cards, or Glimmers, by spending ink from their available pool, before sending them out on quests thereby leaving them open to be challenged by their opponents glimmers
The staples of the format but not format defining like the S tier cards
For example, if a source deals 5 damage to you, you may exile one permanent, two cards from hand, and two cards from your graveyard
Sokkas discount ability gets better in a dedicated Allies build, though so far there isnt a ton of support for an Ally Equipment deck
Some forces have pushed constructed Magic towards greater consistency, including, but not limited to, the mulligan rules (and especially the London mulligan), the massively expanded card pool with many functional variants or copies of existing cards, and the greater efficiency of deck manipulation (especially with the advent of cantrips and fetchlands)
Budget, Reprints, and Upgrade Paths One nice thing about the best white cards in MTG is that many of them get frequent reprints