Tenth Edition

Creature — Wurm

At the beginning of your upkeep, flip a coin. If you lose the flip, return this creature to its owner's hand.

Scoria Wurm

Urza's Saga

Creature — Bird

Flying
When this creature enters, look at the top four cards of your library, then put them back in any order.

Spire Owl

Beast

Enchantment

At the beginning of your upkeep, you may put a verse counter on this enchantment.
{G}, Sacrifice this enchantment: Create X 3/3 green Beast creature tokens, where X is the number of verse counters on this enchantment.