Arcane Signet [Commander Masters] Odyssey You may spend mana as

You may spend mana as though it were mana of any type to cast creature spells

Roll a d20

On wooded path

{4}{W}: Cave of the Frost Dragon becomes a 3/4 white Dragon creature with flying until end of turn

you may search your library and/or graveyard for a card named Ajani

Arcane Signet [Commander Masters] Odyssey You may spend mana asSet: Commander Masters Type: Artifact Rarity: Uncommon Cost: {2} T: Add one mana of any color in your commander's color identity. Matic had only taken the ring to appease his grandmother when she'd pressed it insistently into his palm. As the rats scurried away from its light, he understood her urgency.