Wait, I didn't understand anything. How does this card work?
First of all, during your turn, you use the first effect, reveal it, declare a type, and this card "becomes" that type, but has to be kept revealed. Giving it to the opponent will make sense if I ever make an Archetype around it. Secondly, during the opponent's turn: find a way to reveal your opponent's hand, then choose a card in their hand which is of the same card type you declared last turn. It's a Match! Both cards get sent to the GY.
Basically, in the proper Deck, it can eradicate a card from the opponent's hand, 1 for 1. Remember this only works during the opponent's turn, so if you draw it at the beginning of the Duel, it's useless until the 2nd turn.
Also, it's a Trap because it needs to be slow: you have to lose a turn changing it into something else, since Traps aren't as common as Monsters or Spells.
Can the opponent use the Match effect if you give it to them?
Yes, they can. But again, that part isn't as relevant as it could be in the near future.
TL, DR: A super weird gimmicky card. Feel free to move it to Experimentals if you think this is just too odd.
Reviews and thoughts are appreciated thanks