Harmonized Crescendo

Tribal card draw usually looks like a fixed payoff: a flat number stapled to a lord, or a mana sink that only scales once the game is already going your way. This inverts that math by making the tribe you name the multiplier and letting the very creatures being counted pay the freight. Convoke ties the numerator to the denominator: the more permanents of the chosen type you control, the bigger the draw, and the more bodies you have on hand to tap toward the six mana the spell wants. On a developed board the effective cost collapses toward its two blue pips, and you refill at instant speed off a battlefield you were never planning to spend anyway. The choice clause is the discipline here: you name one creature type and count only that, so the card rewards a deck built around a coherent tribe rather than a pile of unrelated widgets, and it counts every permanent of that type, not just creatures, which quietly rewards changelings and typed noncreature permanents padding the total. It is a refuel spell for the go-wide tribal deck that has always struggled to keep its grip full after dumping its hand onto the board, sitting in the same lineage as tribe-scaling payoffs that turn board presence back into cards, but at a speed and a discount those older effects never offered.