Territory Forge

Copy-effects usually take the whole permanent: the stats, the type line, the abilities all at once. This narrows the theft to a single vector. It exiles an artifact or land and then wears only that card's activated abilities, a red artifact engine that fires whatever tap-line or mana ability it just stripped out of a board (yours or an opponent's). The cast condition is the design fence: the exile trigger only fires "if you cast it," so blinking or reanimating the body gets you the shell without the payload, which keeps the effect from spinning into a recursion loop that re-steals an ability every turn. The interesting part is that it does not care what the exiled card was, only what it does: any activated ability on the target, from a mana rock's tap-for-mana to a manland's animation cost, transfers wholesale onto a card sitting in red's color identity. Because the source is exiled rather than borrowed, the theft is permanent and clean; there is no "return it" clause, no dependence on the original staying in play. It reads as red's answer to a copy-and-control impulse that has historically lived in blue and colorless: you are not stealing the permanent so much as gutting it for parts and keeping the machine, then bolting that machine to a color that rarely gets to plunder for value this way.