Remember, to make this it must have a White color identity, not multi like Dismantling Blow and then cannot be a cantrip like Shelter or Wall of Omens that replaces itself when doing something else but an actual proper card draw spell
Weve only seen one Otter so far, in Bria, Riptide Rogue, but already its clear that the creature type will care about casting noncreature spells
Although if you play Five Color where it's legal it's the best card draw spell of all time
However, if Genesect ex has G Booster from Megalo Cannon [BW9] attached, it can use the eponymous attack to strike for 200 damage even in the early game
The Clear archetype from the Yu-Gi-Oh
Boxes, packs, and sealed products should stay sealed