Tanglebloom

Cheap to deploy, then forever expensive to use: every point of life off this rock costs another mana, a rate so slow that the lifegain barely registers against any real clock. That is by design, because the life was never the point. The card exists to put a colorless permanent onto the battlefield for a single mana, sit there as an artifact, and feed the things that actually count artifacts: sacrifice payoffs, affinity totals, metalcraft thresholds, anything asking "how many artifacts do you control?" without caring what they do. One life per turn for a recurring mana investment is fodder dressed up as a defensive plan. What earns it a printing is how little it asks in return: no color requirement, no synergy tax, no opportunity cost past a card slot in a deck already in the business of stacking cheap artifacts. The brief is narrow, and the design fills it honestly rather than pretending the trickle of life is anything but an alibi.