Padeem, Consul of Innovation #62

Sep 20, 2016

If an artifact has in its mana cost, X is considered to be 0.

Sep 20, 2016

If you don't control an artifact with the highest mana value as your upkeep begins, Padeem's second ability won't trigger. You can't cast an instant to destroy an opponent's artifact during your turn before your upkeep begins.

Sep 20, 2016

If you no longer control an artifact with the highest mana value as Padeem's triggered ability resolves, you don't draw a card.

Sep 20, 2016

The artifact you control has to have the highest mana value only among artifacts on the battlefield, not among all permanents on the battlefield.