Puppet Strings

A repeatable tapper that works in both directions, which is the design wrinkle that gives it more reach than its untap-locks-down-a-blocker cousins. Tapping a creature for two mana is the easy half: blank an attacker, keep a vigilant blocker home, or shut off a creature with a tap cost. The untap half is where the rate is doing quieter work. An untapper available on demand, asking for nothing but its own activation, turns any creature with a tap ability into a soft engine: a mana producer untapped each turn doubles its output, a creature that draws or pings on tap gets a second use, and a vigilant attacker can be wrung for value past the combat step. Because the effect is colorless and lives on an artifact, it slots into anything, and because it targets any creature, it crosses the table freely: your own dorks one turn, an opponent's untapped threat the next. What restrains it is the cost stacking: it taps itself and asks for two mana on top, so it never untaps two things in a turn and never comes free. That is the line between a build-around enabler and a combo piece, and it is the reason this style of effect kept getting reprinted at low rarity for years rather than getting pushed.