Confiscate

Where Control Magic and its kin stay locked to creatures, this widened the theft to every permanent type at once: artifacts, enchantments, lands, anything that resolves and stays put. Breadth is what justifies the slot, and six mana double-blue is the price that breadth carries. The cost is steep for an Aura, deliberately so: the card can grab a mana rock, a planeswalker, a load-bearing piece of an opponent's engine, or simply the biggest body on the board, and pricing it this high keeps that universality from coming cheap. It carries the same vulnerability every Aura-based steal does: the stolen permanent walks straight home the moment the Aura leaves play, so a single enchantment-removal spell undoes the whole investment and returns the target. That fragility is the structural trade that buys access to any category instead of just the creature pool. It reads as a strictly-greedier Control Magic, and in raw scope it is, but the extra generic mana and the wider target list together drop it into a slower, more deliberate slot than a tempo-positive creature steal would occupy. The functional descendants that came later (broader, cheaper, or temporary takes on permanent control) all draw on this template: buy total flexibility with raw mana and accept that the theft can be unstapled by a single answer.