Knowledge Seeker

The trigger here is more specific than the usual card-advantage payoff: not "whenever you draw a card," but the second draw each turn. That single word does the balancing. A stock draw step never triggers it; you have to manufacture the extra draw, which means the counter is a reward for a deck already leaning on cantrips, loot effects, or a second draw engine rather than a passive accrual that happens on autopilot. Vigilance is what turns that growth into pressure, letting the body attack without surrendering its blocking duty while the counters stack. And the death clause quietly refuses to let the investment evaporate: a Clue is a delayed replacement for the card you sank into growing it, so trading it away in combat or feeding it to removal still leaves you a future draw. Structurally it sits in a lineage of blue two-drops that ask you to play a certain way to get paid, punishing storage-of-value only if you neglect the draw-two condition it is built around. The Fox Spirit is a growth engine that measures its own upkeep by how hard your deck is already working to see extra cards, and hands back a Clue as consolation when the plan finally meets a removal spell.