Kitsune Loreweaver

The pump scales with cards in hand, which makes this a creature that wants you to do nothing: every card you hold makes its repeatable activation hit harder, and every card you cast to develop a board shrinks the payoff. The reward is +0/+X, toughness only, so the Loreweaver never threatens to swing for lethal off a full grip the way a power-and-toughness pumper would; it survives, it blocks, it absorbs, and it sits behind a wall of held cards as a deterrent rather than a clock. The 2/1 body is fragile enough that the ability doubles as defensive insurance, a way to make a brick survive a removal spell or eat an attacker mid-combat at instant speed. This sits in a small line of early designs that tried to make a virtue of the control player's clogged hand, converting unspent resources into a board asset instead of a liability. The problem those cards never solved is that hoarding cards and winning are usually opposed goals: the turns when your hand is fullest are the turns you can least afford to spend mana shoring up a single 2/1. A clever expression of a deckbuilding idea that rarely repaid the cards it asked you to keep.