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.
Mana cost
3
B
Printings
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$0.34
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Rulings
29 Feb 2020
You retain all acorn counters in your stash until you spend them, even if you lose control of Acornelia.
29 Feb 2020
If you cast a Squirrel spell that depicts a squirrel (as most do), you'd get two acorn counters: one when you cast the spell, and another when the spell resolves and the Squirrel enters the battlefield.