Specimen Collector

When this creature enters, create a 1/1 green Squirrel creature token and a 0/3 blue Crab creature token.
When this creature dies, create a token that's a copy of target token you control.

The List

Jumpstart: Historic Horizons

Modern Horizons 2

For Specimen Collector's last ability, the target token can be any token you control, not necessarily one of the token creatures you created due to its first ability, and not necessarily even a creature.

Copy

(This token can be used to represent a token that's a copy of a permanent.)