This creature gets +1/+1 as long as an opponent controls an Island
turn: you can play Brook, who allows you to play a 3-cost or less FILM character, then play Nico Robin, who allows you to play a 2-cost or less FILM character, and then play Trafalgar Law, pay 1 for his ability, play a second Nico Robin, and play Law again
Either way, in a dedicated food or squirrels deck its pretty decent, especially if you exile your own mana dork
You can start playing immediately after purchase
This means that if your opponent has evolved Charmander into Charizard using Rare Candy, you'll send the Charizard card back to their hand while defeating Charmander with the 100 damage from the attack
Its one thing for a Callous Dismissal or Spark Harvest to undo your hard work assembling a zombie army, but its another for a Pious Interdiction to also shut off all future progress as well