4-Star Crystal

Main Crystals: Alliance Crystal ● Arena Crystal ● Daily Crystal ● Free Crystal ● Premium Hero Crystal
Other Crystals: 2-Star Crystal ● 3-Star Crystal ● 4-Star Crystal ● 5-Star Crystal ● 6-Star Crystal ● Alliance Quest Crystal ● Ascendant Crystal ● Cosmic Crystal ● Golden Crystal ● Hero Crystal ● Mutant Crystal ● Mystic Crystal ● Quest Crystal ● Science Crystal ● Skill Crystal ● Tech Crystal ● Ultimate Crystal ● Versus Crystal
Champion Crystals: Absorbing Crystal ● Aerialist Crystal ● Aged Crystal ● Apprentice Crystal ● Arachnid Crystal ● Arc Crystal ● Armament Crystal ● Assassin's Crystal ● Avengers Crystal ● BAMF Crystal ● Cloned Crystal ● Cross Tech Crystal ● Defenders Crystal ● Exo-7 Crystal ● Experimental Crystal ● Fearless Crystal ● Forceful Crystal ● Furocious Crystal ● Fused Crystal ● Guardian Crystal ● Half-Inch Crystal ● Heated Crystal ● High Bidder Crystal ● Intimidating Crystal ● Lunar Crystal ● Malicious Crystal ● Marvelous Crystal ● Mercenary Crystal ● Omega Crystal ● Organic Crystal ● Patriotic Crystal ● Polar Opposites Crystal ● Power Crystal ● Prime Crystal ● Selfless Crystal ● Sensational Crystal ● Sensory Crystal ● Solar Crystal ● Sorcerous Crystal ● Spiderbite Crystal ● Symbiotic Crystal ● Teleportation Crystal ● Thunderous Crystal ● Ultra Magnetic Crystal ● Underground Crystal ● United Crystal ● Veteran Crystal ● Vibranium Crystal ● Warrior King Crystal ● Wooded Crystal ● X-Men Crystal
See also: Crystal Shards