Pay half 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, and their monster's effects are negated. •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 Set Spell or Trap cards.