The Holliateur's Arch

This enters the battlefield tapped.
{t}: Add {w}, {u}, or {b}.
{4}: Create a 1/1 Mindbreaker creature token with
"{t}, {1}: Remove one mana from target player's mana
pool."
{4}: Draw 2 cards.
{4}: Target player mills 3 cards.
{4}: Create 4 tapped treasure tokens. (It's a colorless artifact token with: "{t}, Sacrifice this artifact: Add one mana of any color.")