Magus of the Mind [Commander 2017] Goblin Pirate You may cast spells with

You may cast spells with the same name as this spell from among those cards without paying their mana costs

Set: Khans of Tarkir Prerelease Promos Type: Creature — Human Monk Rarity: Rare Cost: {1}{W} Morph {3}{W}{W} (You may cast this card face down as a 2/2 creature for {3}

Bontu wanted only to be first among the God-Pharaoh's subjects

Set: Antiquities Type: Artifact Creature — Bird Rarity: Rare Cost: {5} Flying

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

Magus of the Mind [Commander 2017] Goblin Pirate You may cast spells withSet: Commander 2017 Type: Creature Human Wizard Rarity: Rare Cost: {4}{U}{U} {U}, {T}, Sacrifice Magus of the Mind: Shuffle your library, then exile the top X cards, where X is one plus the number of spells cast this turn. Until end of turn, you may play lands and cast spells from among cards exiled this way without paying their mana costs. "I'll show you what you truly desire."