Pay half of your Life Points. Select and activate an appropriate effect which can be applied: ● If "Yu-Jo Friendship" is in your Graveyard, until the end of this turn: your opponent cannot Normal Summon, Set, Flip Summon, or Special Summon a monster(s) or activate an Effect Monster's effect. ● If "Unity" is in your Graveyard, until the end of this turn: negate the effects of all Spell and Trap Cards on your opponent's side of the field, and your opponent cannot activate or Set Spell or Trap Cards.