Thundertrap Trainer

Creature — Otter Wizard{1}{U}1/2

Offspring {4} (You may pay an additional {4} as you cast this spell. If you do, when this creature enters, create a 1/1 token copy of it.) When this creature enters, look at the top four cards of your library. You may reveal a noncreature, nonland card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Colour identity Blue · Offspring

In short

Thundertrap Trainer has 5 listed printings; the most valuable is the Prerelease printing from PBLB at US$6.67 on TCGplayer's market price. Prices below are the cheapest in-stock listing in the United States.