Disloyal Mage

Dissident (At the beginning of each opponent's
combat phase, you may allow that player to gain
control of this creature until end of combat. If that
player does, you draw a card, then it gains haste and creatures that player controls can't attack you until
end of turn. That player can't sacrifice this creature
this turn)
{u}: Draw a card, then discard a card. Only your opponents may activate this ability.