Trial of Knowledge

Most card-advantage enchantments are a one-time tax: pay the mana, draw, and the permanent sits as a spent shell. This design refuses that finality. The enters trigger gives you a Glimmer of Genius-style dig (three deep, one back), then couples the enchantment to a sibling subtype: when a Cartouche you control enters, this returns to your hand, ready to redeploy and refill. That coupling is the entire point. The Cartouches are cheap aura buffs that want to be on the board anyway, so the loop never asks you to play a dead card to enable it; the enchantment piggybacks on a tempo play you were already making. The cost of the engine is paid in flickered card advantage rather than raw efficiency: you discard one of the three each time, and you re-pay four every time you recast, so the value accrues slowly across a long game instead of arriving all at once. It wants to be a midrange grind piece, a recurring filtering valve that smooths your draws while you assemble a board of enchanted threats, rather than a burst of cards to be spent and forgotten. The dependence on landing Cartouches to unlock the return is the friction that keeps the raw rate honest: without them, it is a four-mana one-shot dig, and only the aura shell turns it into an engine.