Thunder Unicorn is a Ultra Rare Synchro Monster card from Yu-Gi-Oh! (Duelist Revolution, DREV). Current market price: $1.48.
Ultra Rare
Duelist Revolution (DREV)
Card Text
1 Beast-Type Tuner + 1 or more non-Tuner monsters
Once per turn, during your Main Phase, you can select 1 face-up monster your opponent controls. It loses 500 ATK for each monster you control, until the End Phase. During the turn this effect is activated, no other monsters can attack, except this card.
