Chaos Wand

Theft cards usually steal a thing you can see: a creature, a permanent, a known card from a known hand. This one steals a category instead, reaching blind into an opponent's library and pulling out the first instant or sorcery it finds, then handing it to you for free. The randomness cuts both ways and is the whole tension of the design. You might dig past a fistful of lands to flip their best counterspell or board wipe; you might just as easily surface a cantrip and burn a heavy activation on nothing. The mana commitment is steep (a four-mana activation on top of a three-mana artifact), so the card only earns its keep in decks built to crank the wand repeatedly across a long game rather than as a one-off play. What makes it more than a coin-flip is that the cost it dodges is your opponent's, not yours: the spell you cast is one they paid to put in their deck, free-cast against the grain of whatever color it belongs to. Because the activation carries no timing restriction, it fires at instant speed, so the wand can flip and free-cast a spell on their end step or in response to a threat, not just on your own turn. That puts it in the lineage of cast-from-someone-else's-deck effects, where the appeal is less the average outcome than the occasional theft of something your own colors could never play: a grindy, variance-forward engine for tables that go long enough to let it pay off, and a dead rock anywhere a game ends before then.