Effect
Digivolve: 1 from [Mercuremon]
You may digivolve this card from your hand onto one of your black Tamers as if the Tamer is a level 3 black Digimon.
[When Digivolving] 1 of your opponent's Digimon gains "[Start of your Main Phase] This Digimon must attack." until the end of your opponent's turn.
