Riften

When Riften enters the Battlefield, create one treasure token and two 1/1 black and green thief creature tokens with Shadow and "When this
creature deals combat damage, create a treasure
token."
{t} add {b}{b}, {b}{g}, or {g}{g}.
{b/g}{t} sacrifice a creature: create a 1/1 black and
green thief creature token with Shadow and
"When this creature deals combat damage,
create a treasure token."