Apply these effects, in sequence, depending on the number of "Ice Barrier" Synchro Monsters you control with different names;
 1+: Banish 1 card your opponent controls.
 2+: Banish 1 card from your opponent's GY.
 3+: Banish 1 random card from your opponent's hand.
When your opponent activates a card or effect that targets an "Ice Barrier" Synchro Monster(s) you control: You can banish this card from your GY; negate that effect.
You can only use each effect of "Terror of Trishula" once per turn.