Cartouche of Solidarity
The single white mana splits its value across two permanents: when the Aura resolves it leaves a 1/1 vigilant Warrior behind, so a removal spell aimed at the now-enchanted creature only costs you half the card. That is the structural fix for the oldest problem with Auras, the two-for-one blowout, built into the enter-the-battlefield trigger rather than bolted on as a separate clause. The caveat is timing: the token only appears once the spell actually resolves, so a creature killed in response to the cast denies you both the buff and the body. Once it sticks, the package is a permanent +1/+1 plus first strike, the cheap white answer to a clogged ground. First strike lets a modest body trade up or hold a chokepoint against anything its size or smaller without dying in the exchange, work that usually costs more than one mana. Stripped of the Cartouche subtype's connective tissue with the plane's other enchantments, the card still reads as a small go-wide engine: a free attacker, a stat bump, and a combat-relevant keyword, all committed at sorcery speed. You pay up front and commit to the board, but the payment is structured so no single answer undoes the whole turn.
