Garp is closely related to One Pieces protagonist, Monkey D
And if you can get it out soon enough, you can pay most of your life to draw a huge amount of cards and combo for a win
A lot of the cards in the deck can make mana too - which means you can cast big game-ending spells like Tyrranax Rex and The World Spell when youve had enough fun and need to win
If you cast it for nine, it becomes a game-ending threat that your opponents must answer right away, but even at four or five mana it's fantastic for a bunch of popular red strategies
This means that if your deck only lets you play white and green cards, you can still play Sunscape Familiar and take advantage of the discount.
You'll still lose that piece for your next turn, but you'll also lose the opportunity to draw a better card next turn, and you'll lose the mana on recasting it