Dwarven Gold Mine

Dwarven Gold Mine comes into play tapped
unless you control a Dwarf or a Mountain.
{t}: Create a gold token.
{t}, Sacrifice Dwarven Gold Mine: Create 5 gold
tokens. Put a 4/4 red Dragon creature token with flying onto the battlefield under your opponent's control tapped and attacking you. Exile that
token at the end of your opponent's next turn.