Parasitic Grasp

Cleave exists to solve a specific tension: the tribal-conditional removal spell that reads clean in flavor but plays as a dead card when the board holds no legal target. The base mode stays cheap because it only speaks to Humans, three damage and a three-point life swing pointed at the small aggressive bodies a Human-hosing spell is naturally aimed at. Spend the extra mana and the bracketed word "Human" simply drops off the card, leaving the same three damage and three life against any creature. Note the ceiling: even cleaved, the spell still demands a creature target, so it never reaches a player or planeswalker no matter how much mana you pour in. What makes the mechanic worth studying is that it packages a downside and its escape hatch into one line rather than printing two cards. Older designs solved the same problem additively, with kicker or entwine bolting extra effects onto a spell; cleave is subtractive, spending mana to remove text instead of add it. That inversion is why the on-tribe version can stay genuinely cheap while the flexible version costs only a little more. The three life is fixed, but its strategic weight is not: it counts for far more racing a low-curve swarm than it does trading with one oversized threat. This is an exercise in keeping a hoser flexible enough to maindeck without sanding off the tribal identity that justified its low cost in the first place.