White planeswalkers can summon individually weak creatures that are collectively strong as a group such as soldiers, as well as powerful creatures and leaders that can strengthen all of the player's creatures with additional abilities or strength
While Rack isnt pure card advantage, its filtering strength is just as good, if not better
Seems a bit good Back in Commanderland, this thing encourages you to go deep on free spells and cost reducers
Vexing Shusher, Dosan the Falling Leaf, Prowling Serpopard, Archetype of Endurance, Spearbreaker Behemoth, Stonehoof Chieftain, Boseiju, Who Shelters All, Cavern of Souls, Homeward Path, Domri, Anarch of Bolas, Heroic Intervention Protection
The rest are either solid inclusions or supreme staples, like Toxic Deluge
What matters is how a certain person or group is going to treat it