Scroll of the Masters

A spellslinger payoff dressed as a finisher, built to convert the byproduct of a noncreature-heavy deck into lethal combat math. The lore counters accumulate passively off the same instants and sorceries you were already casting; the activation then dumps the whole stockpile onto a single creature, scaling a lone attacker by the entire history of your spell-casting. That structure makes it a slow burn with a sudden ceiling: early it does nothing visible, but a deck that chains cheap noncreature spells turns a 1/1 into a one-shot kill several turns later. The friction lives in the activation cost, a three-mana pump that competes for the same mana you would spend feeding the counter pile. But the timing cuts the other way: with no restriction on when you can tap it, you can hold the mana up, let blockers commit, and pump at instant speed after combat math is supposedly settled, turning a routine block into a blowout. It rewards committing fully to the noncreature plan rather than splitting attention between threats and counters. The lineage runs through earlier "cast noncreature spells, get rewarded" engines, but most of those grant card advantage or tokens; this one stores its value in a single counter pile and cashes it as raw stats, which leaves it fragile to removal in a way a board of bodies is not. The longer it lives, the more lethal it becomes, and the more reason an opponent has to make sure it does not.