change it to face-up Attack Position, and if you do, it loses 600 ATK
Its attack power is at the level of a recruiter, so it's not very reliable, but the target it's aiming for is probably a defense display monster, so it's not as big of a problem as you might think
In short, to take a mulligan is to decide that your opening hand is not good enough, so you shuffle those cards back into your opening hand and draw one fewer, hoping to find a better start to the game
Having as much Energy as possible is a key way to win a battle and Leaf helps to keep those numbers up
First we mill our opponents to make sure they have juicy things in their graveyards with cards like Soaring Thought-Thief, Consuming Aberration, and Oona, Queen of the Fae
Removal Gruul doesn't have too many cards that purely destroy a creature, but Beast Within is close enough