Monk of the Catacombs

Regent (If this card is in your hand at the beginning of your upkeep and the first card you drew this turn has the same converted mana cost and the same creature type then put this creature onto the battlefield, it becomes legendary, and it becomes your commander for the rest of the game. If you already have a commander this creature and your commander gain partner.)
Legendary creatures you control have +1/+2 and vigilance.