Grim, the Tidebreaker Captain

Whenever you cast an instant or sorcery spell,
you may mill three cards. Put all lands put
into the graveyard this way into play tapped,
for each nonland card put into the graveyard
this way you create a colorless Treasure
artifact token with ", Sacrifice this artifact:
Add one mana of any color to your mana pool."
Raid - If you attacked with a creature this turn,
you may cast Grim, the Tidebreaker Captain
from your graveyard.