Sanar, Unfinished Genius // Wild Idea
Legendary Creature — Goblin Sorcerer // Sorcery
Sanar enters prepared. (While it's prepared, you may cast a copy of its spell. Doing so unprepares it.)
{T}: Create a Treasure token. Activate only if you've cast an instant or sorcery spell this turn.
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Search your library for an instant or sorcery card, reveal it, put it into your hand, then shuffle.
TreasurePrepared