Gardevoir is attained through regular leveling, while Gallade requires a Dawn Stone and must be male
"Rock The Boat" is great to use when an opponent has multiple Glimmers in play, as when Tinker Bell is played, she deals 1 damage to each opposing character
Alpharael, Stonechosen is one of these, and you can combine it with cards that make players lose twice the amount of life to straight up win, like Bloodletter of Aclazotz
His ability prevents any damage to attacking creatures you control, and gives them menace to help slip through your opponent's defences more easily
Beyond her obvious power (8000), it's her "on play" effect that will disrupt your opponents
In the pop-up menu, select the upgrade option