Mentor of the Meek [March of the Machine Commander] 155 This mana can't be spent

This mana can't be spent to pay generic mana costs

SHIE NANAHARA

Tin Street Kingpin attacks

Set: Sword & Shield: Chilling Reign Type: Lightning Rarity: Holo Rare Retreat cost: Colorless

Set: Black & White: Next Destinies Type: Fighting Rarity: Holo Rare Retreat cost: Colorless

Mentor of the Meek [March of the Machine Commander] 155 This mana can't be spentSet: March of the Machine Commander Type: Creature Human Soldier Rarity: Rare Cost: {2}{W} Whenever another creature with power {2} or less enters the battlefield under your control, you may pay 1. If you do, draw a card. In these halls there is no pass or fail. Your true test comes with the first full moon."