Dryad Militant

The static ability is the whole reason to look past the aggressive body: while this Dryad is on the battlefield, every instant and sorcery that would hit a graveyard gets exiled instead, a passive hosing of the graveyard-spell economy that flashback, delve, and any "count your cheap spells in the bin" payoff depends on. The effect is symmetrical, and that symmetry is the discipline; you pay the same tax it levies, so it belongs in shells that do not lean on their own yard. The "from anywhere" clause matters more than it looks: the spell is intercepted whether it is heading to the graveyard from the stack on resolution, from hand via discard, or milled off the top of the library, not just when a spell finishes resolving. Compare it to a dedicated answer like Rest in Peace: that card exiles everything but applies no pressure, while this walks past the same problem on a one-mana clock and threatens lethal whether or not the opponent ever casts an instant or sorcery. The hybrid pip is the other half of the appeal, letting either green or white aggression run it without bending a manabase. It is a hatebear in the truest sense: a creature whose taxing static ability matters as much as its swing, priced cheaply enough that you rarely feel you paid for the disruption.