Sarloth, God of Puppets

Indestructible, Cherish (As long as you control
the most permanents among all players, this creature
gets +4/+4.)
{x}{u}{r}{g}, {t}, Gain control of target nonland
permanent with converted mana cost X or less.
{9}{u}{r}{g}, {t}, Pay 4 life: Target player
exchanges control of all permanents they
control with you.