Ledger Shredder

What connive did for tempo decks: it turned a card-selection mechanic into a growth clock without asking for extra mana. The trigger keys off a game state every spellcasting deck naturally produces, the second spell each turn, so the reward scales with how the deck already wants to operate rather than demanding you build around it. A 1/3 flyer on turn two is a body that trades up and blocks the aggressive one-drops all day, and each connive is a soft loot that filters lands into gas while the counter accrues; discard a nonland and the Bird grows into a genuine threat, discard a land and you have smoothed your draw for free. That double-mode payoff is what makes it hard to punish: the ability is never a dead trigger, only a better or worse one. Cheap blue flyers usually pick a lane, hitting hard and dying to removal or blocking well and doing nothing on offense; this one refuses to choose, growing on its own axis one spell at a time, so a control opponent who leaves it alone watches a 1/3 become a lethal evasive body over a few turns of ordinary spellcasting. The counter is permanent, the flying is unconditional, and the trigger costs nothing beyond the spells you were casting anyway.