Deranged Hermit

Echo {3}{G}{G} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When this creature enters, create four 1/1 green Squirrel creature tokens.
Squirrel creatures get +1/+1.

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Vintage Masters

Echo {3}{G}{G} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When Deranged Hermit enters the battlefield, put four 1/1 green Squirrel creature tokens onto the battlefield.
Squirrel creatures get +1/+1.

Judge Gift Cards 2004

Urza's Legacy

Echo (During your next upkeep after this permanent comes under your control, pay its casting cost or sacrifice it.)
When Deranged Hermit comes into play, put four Squirrel tokens into play. Treat these tokens as 1/1 green creatures.
All Squirrels get +1/+1.

The Squirrel tokens get the bonus, so they are effectively 2/2 creatures until the Hermit leaves the battlefield. And they get bigger if multiple Hermits are on the battlefield.