She also has a mana ability that costs the same as her casting cost (3G, 1C), which creates X 1/1 Squirrel creature tokens where X is the number of Squirrels you control
For 4 mana, you get the effect of Entomb and 2 copies of Natures Spiral allowing you to set up for some pretty powerful plays
Its the kind of thing that might not seem like much on a single turn but across a game is likely to be the difference between victory and defeat
Druids and merfolk are a very restrictive pair of creature types, but it makes sense when you have such a powerful recursive ability in retrace
In decks that generate artifact tokens like Treasures, Thopters, or Clues, these two pieces of equipment turn any creature, or even no creature at all, into a game-ending force
If you keep casting instants and sorceries, he can easily reach 10/10, and if his power exceeds 21, you can win in one hit