Custodi Soulbinders [Commander Anthology Volume II] Magic 2014 Promos you may pay {0} rather

you may pay {0} rather than pay the mana cost for a spell you cast with mana value X or less

Enchanted creature can attack as though it had haste

"The best answers solve more than one riddle

Set: Conspiracy: Take the Crown Type: Creature — Elemental Beast Rarity: Common Cost: {1}{R} Whenever you cast an instant or sorcery spell

Inventors Type: Artifact Creature — Myr Construct Rarity: Rare Cost: {7} When Myr Battlesphere enters the battlefield

Custodi Soulbinders [Commander Anthology Volume II] Magic 2014 Promos you may pay {0} ratherSet: Commander Anthology Volume II Type: Creature Human Cleric Rarity: Rare Cost: {3}{W} Custodi Soulbinders enters the battlefield with X +1 +1 counters on it, where X is the number of other creatures on the battlefield. {2}{W}, Remove a +1 +1 counter from Custodi Soulbinders: Create a 1 1 white Spirit creature token with flying.