Mining Expedition

When you search your deck for a Mission card
for the first time during a game, you must
choose Mining Expedition.
Dwarf creatures you control gain {t}: Create a
0/1 blue Morkite token.
During any end step where you have 6 or more
Morkite tokens, you must sacrifice all Morkite
tokens. For each sacrificed token, create either
a 0/1 white Gold Nugget or 0/1 red Nitra token.
Shuffle Mining Expedition into your library.