Big Welcome Labrynth 20
Normal TrapSpecial Summon 1 "Labrynth" monster from your hand, Deck, or GY, then return 1 monster you control to the hand. You can banish this card from your GY, then target 1 Fiend monster you control, or, if you control a Level 8 or higher Fiend monster, you can target 1 card your opponent controls instead; return that card to the hand. You can only use 1 "Big Welcome Labrynth" effect per turn, and only once that turn.
Farewelcome Labrynth
Normal TrapWhen a monster declares an attack, while you control a Fiend monster: Target 1 card on the field; negate the attack, and if you do, destroy that targeted card, then, you can Set 1 non-"Labrynth" Normal Trap from your hand or Deck.
Labrynth Barrage
Normal TrapWhen you activate a Set Normal Trap Card, except "Labrynth Barrage": This effect becomes that Normal Trap's effect when that card is activated, also until the end of your opponent's next turn after this card resolves, your opponent takes no effect damage from your card effects.
Welcome Labrynth 20
Normal TrapSpecial Summon 1 "Labrynth" monster from your Deck, also until the end of the next turn after this card resolves, you cannot Special Summon monsters from the Deck or Extra Deck, except Fiend monsters. If a monster leaves the field by your Normal Trap effect, while this card is in your GY, except the turn it was sent there: You can Set this card. You can only use each effect of "Welcome Labrynth" once per turn.