Serum Powder

: Reveal any number of artifact cards in your hand. Add for each card revealed this way.

When this artifact enters, you take the initiative.

: Add . If you have the initiative, add instead.

, : Exile cards from the top of your library until you exile a nonland card. You may cast that card without paying its mana cost. Activate only if you've completed a dungeon.

This artifact enters tapped.

When this artifact enters, you may look at the top four cards of your library. If you do, reveal up to one land card from among them, then put that card on top of your library and the rest on the bottom in a random order.

: Add .

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)

: Add .

, Sacrifice this artifact: You gain 3 life and draw a card. Activate only if you have the city's blessing.

: Add . Spend this mana only to cast Myr spells or activate abilities of Myr.

, : Return target Myr card from your graveyard to your hand.

: Add . Put a point counter on this artifact.

Whenever a creature deals combat damage to you, remove a point counter from this artifact.

Whenever a creature you control deals combat damage to an opponent, put a point counter on this artifact. Then if it has ten or more point counters on it, remove them all and that player loses the game.