Kefnet's Last Word

Permanent theft has always been priced two ways: pay full freight in mana and risk a slow clock (Mind Control and its descendants charge five and ask you to defend the prize), or take it cheap and accept that the steal walks itself back somehow. This takes the second deal and pays it in tempo rather than card economy. The body of the cost is in the rider: your lands don't untap next turn, which means the turn after you steal the best thing on the board, you are operating on whatever mana you held back or none at all. That window of vulnerability is the whole transaction. You commit four mana, strip an opponent of their key artifact, creature, or enchantment, and then sit defenseless through their entire next attack and removal sequence with no untapped lands to interact. The reward is that the theft is permanent: unlike a temporary grab, there is no clause handing the permanent back, so survive the dead turn and the swing is yours to keep. The targeting net catches more than creatures, too, which lets the spell answer a problem planeswalker-tier enchantment or a game-warping artifact rather than just the biggest body. It is a clean illustration of how blue's control magic gets balanced when the rate is generous: not by limiting what you can take, but by stranding you the moment after you take it.