Sower of Chaos

Falter effects have always been one-shots stapled to a spell: pay once, clear a blocker, watch the enabler evaporate. This devil turns that transaction into a fixture. For you tax one creature out of blocking, and because the source is a 4/3 on the battlefield rather than an instant in hand, the ability comes back every turn the red mana holds up. The body does honest four-drop work (it trades up, it races, it demands an answer), but the repeatable ability is what changes the card's job. On a stalled board it peels the fattest wall off the line each turn until the defense runs dry; against a single guard it clears a path for one big attacker while your other creatures stay back to hold ground. The three-mana price per activation is the ceiling that keeps it fair: you rarely swing wide and remove a blocker in the same turn, so the card asks for a position that is already ahead and grinding rather than one looking to explode. What a cheaper trick does once and dies for, this does structurally, without spending a card, handling the quiet path-clearing work that instant-speed interaction usually covers. The permanence is the entire argument for the slot.