My opponent summoned Majesty's Fiend on their turn, I have Beast King Barbaros in hand. May I summon Beast King without tribute with Majesty's Fiend on the field and what is Beast King's attack when I do?
Beast King Barbaros 3000 ATK You can Normal Summon/Set this card without Tributing, but its original ATK becomes 1900. You can Tribute 3 monsters to Tribute Summon this card. If you do: Destroy all cards your opponent controls.
Majesty's Fiend Cannot be Special Summoned. Monster effects cannot be activated.