Reverent Mantra [Mercadian Masques] Colorless even wise generals were known

even wise generals were known to rashly lead their troops into battle—often to disastrous defeats

then put two cards from your hand on top of your library in any order

tap all untapped creatures that share a creature type with it or untap all tapped creatures that share a creature type with it

the player can activate mana abilities only if they're from lands that player controls and only if mana they produce is spent to activate other mana abilities of lands the player controls and/or to play that card

Reverent Mantra [Mercadian Masques] Colorless even wise generals were knownSet: Mercadian Masques Type: Instant Rarity: Rare Cost: {3}{W} You may exile a white card from your hand rather than pay this spell's mana cost. Choose a color. All creatures gain protection from the chosen color until end of turn.