Katie, Cat Commander

Flash
Double Strike, Reach
When Katie, Cat Commander comes into play put 7 2/2 Green Kitty Tokens into play.
Katie's power and toughness are equal to the amount of kitties in play.
{3}{g}{u}: All Kitties get 2+2 until end of turn
{5}{r}{r}{u}: Deal X damage to target creature equal to the amount of Kitties in play.
Regenerate: Sacrifice 1 Kitty