Forum:Thought Ruler Archfiend and Pandemonium

Is the effect of Pandemonium activated when Thought Ruler Archfiend's effect is activated during the Standby Phase? Pandemonium says "Neither player has to pay Life Points during the Standby Phase for "Archfiend" monsters." and Thought Ruler Archfiend states "You can pay 1000 Life Points to negate the activation of a Spell or Trap Card that targets 1 Psychic-Type monster, and destroy it." Thank you for any help.