FIRST-TURN PLAYS Some Effect Monsters are very effective when Set on the first turn because they have an effect that activates when the monster is destroyed. The best examples are "Giant Rat", "Mystic Tomato", and so on. These monsters do not get their effects if destroyed by a card effect, but if you Set them and they are attacked and destroyed, you get to Special Summon a new monster from your Deck. Then you can have 2 monsters on the field on your second turn, or you can Tribute Summon a more powerful monster by Tributing the monster Special Summoned by the effect of "Giant Rat", etc. - click here for another Dueling Tip.