Danger!? Tsuchinoko?

You can reveal this card in your hand; your opponent randomly chooses 1 card from your entire hand, then you discard the chosen card. Then, if the discarded card was not "Danger!? Tsuchinoko?", Special Summon 1 "Danger!? Tsuchinoko?" from your hand, and if you do, draw 1 card. If this card is discarded: You can Special Summon this card. You can only use this effect of "Danger!? Tsuchinoko?" once per turn.