What cards are rarer than epic?

Solution 1:

The rarity which is above Epic is Legendary. Those cards have a rainbow color and hexagonal shape.

At the moment, there are only 13 of these :

• Inferno Dragon, that you can obtain in the P.E.K.K.A's Playhouse (Arena 4).
• Lava Hound, that you can obtain in the P.E.K.K.A's Playhouse (Arena 4).
• Graveyard, that you can obtain in the Spell Valley (Arena 5).
• Ice Wizard, that you can also obtain in the Spell Valley (Arena 5).
• Miner, that you can obtain in Builder's Workshop (Arena 6).
• Sparky, that you can also obtain in the Builder's Workshop (Arena 6).
• The Log, that you can also obtain in the Builder's Workshop (Arena 6).
• Princess, that you can obtain in the Royal Arena (Arena 7).
• Electro Wizard, that you can also obtain in the Royal Arena (Arena 7).
• Lumberjack, that you can obtain in the Frozen Peak (Arena 8).
• Night Witch, that you can also obtain in the Frozen Peak (Arena 8).
• Bandit, that you can obtain in the Jungle Arena (Arena 9).
• Mega Knight, that you can obtain in the Hog Mountain (Arena 10).

It is also possible to get all of those in Legendary Chests.