mega charizard y ex pokemon card (Mirror Holo) (085/742) When a Pokémon Mega Charizard Y ex (Crimson

While not a unique design in itself (each individual color got its own mana battery, and blue would later receive Iceberg in Ice Age ), this is a unique space for an Azorius card, and it has been efficient enough to allow Rasputin to see fringe play for years in Commander assuming you can find a copy

Grizzled Angler/Grisly Anglerfish: This card requires you to be in blue only just enough, or to use the blue casting colorless cards in Battle for Zendikar block

He is also very physically formidable

All the cards above have a single color in their casting costs, and are therefore mono-colored cards: Alesha is red card (you only need and generic mana to cast it), Neyith is a green card, and Hordechief is black card