The List (Unfinity Foil Edition)

Acornelia, Fashionable Filcher

Whenever you cast a spell with a squirrel in its art, you get {A} (an acorn counter).
Whenever a Squirrel you control enters or dies, you get {A}.
{2}{B}, Pay X {A}: Target creature gets -X/-X until end of turn.
{G}, Pay X {A}: Target creature gets +X/+X until end of turn.

Unsanctioned

Whenever you cast a spell with a squirrel in its art, you get  (an acorn counter).
Whenever a Squirrel you control enters the battlefield or dies, you get .
{2}{B}, Pay X : Target creature gets -X/-X until end of turn.
{G}, Pay X : Target creature gets +X/+X until end of turn.