mega charizard y ex pokemon card (Mirror Holo) (085/742) Evolves from Charizard M Charizard-EX | XY—Evolutions |

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

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

I know you want to find out how I ever could do that

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

While supporting itself is nice, you often don't need Heart's Desire to get the beast attacking