Plus, it's on a land (lowering the opportunity cost of putting it in your deck) and repeatable (for just a single mana each turn), which makes it even more powerful
Southern Islands (2001) : A palm tree
You can attack for 20 on turn three with this list (Turn one Caretaker, turn two Familiar, Wall of Roots, Wall of Blossoms, Shield Sphere, Turn three High Alert or Arcades and swing)
If the opponent has a damaged Pokemon on the Bench that you can one-shot with a primary attack, leave it alone
Budget options exist but require more creative deckbuilding
Decks might have some very rarely, but never if it doesnt fit with the theme of the deck