Nadaar, Selfless Paladin (27a) [Adventures in the Forgotten Realms Promos] Commander 2015 Sigil of Corruption — When

Sigil of Corruption — When you lose control of Khârn the Betrayer

You may cast spells from the top of your library by removing a counter from a creature you control in addition to paying their other costs

Set: Kaldheim Type: Artifact Rarity: rare Cost: {4} Creatures you control are every creature type

Set: Stronghold Type: Enchantment Rarity: rare Cost: {G} Whenever an opponent plays a land

or combat phase

Nadaar, Selfless Paladin (27a) [Adventures in the Forgotten Realms Promos] Commander 2015 Sigil of Corruption — WhenSet: Adventures in the Forgotten Realms Promos Type: Legendary Creature Dragon Knight Rarity: rare Cost: {2}{W} Vigilance Whenever Nadaar enters or attacks, venture into the dungeon. (Enter the first room or advance to the next room.) Other creatures you control get +1 +1 as long as you've completed a dungeon.