Enchant creature
At the beginning of the upkeep of enchanted creature's controller, that player may pay . If they don't, Mind Whip deals 2 damage to that player and you tap that creature.
During target creature's controller's upkeep, he or she pays o3 or Mind Whip deals 2 damage to him or her. If Mind Whip deals damage in this way, tap that creature.
"A mind in agony is a sparrow without wings."
—Lim-Dûl, the Necromancer