What does Jinzo do?

Answer 1

Jinzo is a powerful card. His text reads: Trap Cards cannot be activated. The effects of all face-up Trap Cards are negated.When he is summoned, either by Tribute Summoning or Special Summoning, the instant he is face-up on the field no Traps work or can be activated. No, he doesn't destroy Trap cards, but any face-down Trap cards cannot be flipped to activate their effect. So if you were planning on activating Trap Hole or Torrential Tribute when Jinzo is summoned, it will not be able to activate.

If either player has a face-up Trap card, it is negated as well. For example, let's say the oppoent has Solemn Wishes face-up on the field. Whenever they darw a card, they gain 500 LP. Now with Jinzo on the field, when they draw a card, Solemn Wishes will not activate and he/she will not gain 500 LP. An important thing to remember is that Jinzo's Trap-negation applies to both players, so your Traps are inactive and negated too!

As a rule of thumb we can say that when Jinzo hits the field, Traps are done for, but in reality there are a few ways to get around Jinzo. If Jinzo is removed from the field (returned to hand, sent to Graveyard, etc.) or flipped face-down, Traps can start working again. If any Trap card like Threatening Roar is activated before Jinzo is summoned, Threatening Roar will still prevent the opposing player from declaring an attack.

One other thing to note is that when Jinzo is summoned, certain Counter-Trap cards can stop him. The most notable ones are Solemn Judgement and Forced Back. When a monster gets summoned, those particualar cards will negate the summon of the monster. Think of it like this: if you Tribute Summon Jinzo and your opponent activates Forced Back, Jinzo's Trap-negation effect never gets a chance to take effect and he gets return to your hand.