Your opponent cannot target Spellcaster-Type monsters you control with Trap effects. You can target 1 "Magician" Pendulum Monster Card in your Monster Zone or Pendulum Zone and 1 card your opponent controls; destroy them. If you did not destroy both cards with this effect, you can send 1 card on the field to the Graveyard. You can only use this effect of "Time Pendulumgraph" once per turn.