Ultimately, the bailiff at the end of the maze judged Jace to be best suited to inherit the power of the Guildpact, turning him into Jace, the Living Guildpact (hence the flavor of Maze's End winning the game when you've assembled 10 gates)
The faster you are (literally, your speed), the more cards you draw and the more life you lose at the end of your turn
Check out the video here:
Only if you plan to split and sell excess cards
What is the rarity of this Giratina card
What I mean by this, is that sure you can attach your Life Dew or Rock Guard to a Trubbish, but with Catcher still being a largely played card in todays format, unless your opponent can get rid of that Tool, theyll probably work around your other Pokmon in play