The reason this is ahead of the other symmetrical draw spells is that it either generates you mana or costs none once it has resolved thus allowing you first dibs on using the new cards and no disparity in mana
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This will be my first of several articles looking at this deep set for casual kitchen table formats like Commander, multiplayer, Type Four, Cube, and Five Color and Highlander too
For example, while cards like Tocasia's Welcome, Welcoming Vampire, and a Folk Hero all only trigger once per turn, stacking these effects up will go some way to mitigate white's struggles with card advantage.
However, I don't think that's something we should be counting on happening