You have to look at the fine details to see any physical difference at all between Ember and a normal rabbit. It is easy enough when she use her abilities, but when she doesn't, the only difference is her eyes. Where a normal rabbit would have round pupils, Embers are square, similar to that of a goats or deers.
Name: Ember
Gender: Female
Personality:
Ember moves and behaves just like a normal rabbit, with the perked ears, wiggling nose and all that stuff. She prefers to not draw a bunch of attention to herself, so even though she spends considerably more time in the mortal plane alongside Flynn than she does in the Arcana, she never really talks when they're with others. She typically poses as a normal - if extraordinarily tame - pet rabbit.
She pays a lot of attention to her surroundings and is quite vigilant, but also quite friendly and when she does talk, she reveals a warm, if a little sarcastic, personality. She can also be a bit of a mother hen at times.

Abilities:
Attack 1: uh.... she can bite?
Attack 2: .... yeah i'm out of ideas here.

Defense: See below.

Ability:
Whenever Ember uses her abilities, her eyes and the orange parts of her fur begin to glow and the black parts crackle up like a piece of burning, smoldering coal. Her body temperature raises to painfully high levels, and she is capable of leaping with a much higher speed and force compared to a normal rabbit, as she attempts to tackle her enemies and burn them. She is able to set flammable things on fire if she concentrates, and can send out little short bursts of flames.

---

EVOLVED FORM
GIGANTIC FIRA BUNNEH GOAT IS IN DA HOUSE. Embers evolved form is quite massive, standing at no less than seven feet at the withers. She keep much of her normal appearance, but have a pair of deer antlers and one set of curved goat horns perched on her head. Her pelt coloration is crackled like burning coal, even when she isn't using her fire abilities, her eyes are a bright amber color leaving her square pupils fully visible, and furthermore she is built slightly more like a bear or a wolverine than a rabbit - she is still able to stand on her hind legs and leap, but she is stockier, more compact.

Name: Cain
Gender: Male
Personality:
Cain is the size of a large pony and for a second-level summon, he's quite a force to be reckoned with. Unfortunately, while he have shown signs of having a good heart in there somewhere, his arrogant personality still leaves a lot to be desired.

Name: Galadwaer
Gender: Male
Personality:
Although Galadwaer definitely lives up to his harrowing appearance in battle, he is actually quite docile otherwise. He acts as Flynns main mode of transportation without any complaints. However, Flynn is somewhat uncertain whether he is dim-witted or really really intelligent but struggling with language. For a horse, he seem exceptionally smart, but at the same time he rarely reacts to words and she have never heard him speak. Thankfully he usually seem to know what is expected of him somehow. Flynn doesn't really get how, but that's hardly the weirdest part about him is it?

Located on the back of his right hand in black, this symbol is a stylized version of the Celtic symbol for 'wind'

Gender: Female

Size: Roughly seven feet long, from head to tail

Type: Storm Dragon

Personality: Considering Ven's past, Aura may be considered the motherly figure of his life. She's always the one to caution him in case things were too dangerous or if he was about to do something stupid, all the while affectionately calling him 'little one". Just as a mother would be, she's fiercely protective of Ven and will do whatever she can to keep him safe, although with a more level head than he would have.

Abilities:

Offensive: Straight-line Winds: Creates strong, head-on winds
Twister

Defensive: Whirlwind Shield

Special: Flight

---------------Arcana Lord Form---------------


Size: When standing at her tallest, she measures about fifteen feet

Type: Air Arcana Lord

Personality: After evolving, Aura's personality didn't experience many changes, except for her (very slightly) improved willingness to let Ven make his own mistakes so he could learn from them, much like a a parent would for their child

Attack 1: Straight-line Winds
Attack 2: Twister
Attack 3: Crosswinds: Upgraded Windcutter. Instead of a single wave of wind, two slashes are formed in the shape of a cross
Attack 4: Air cannon: Creates a concussive blast of air that slams into enemies
Attack 5: Scatter Shot: Fires multiple air bullets that spread out
Attack 6: Ricochet shot: Fires air bullets that ricochet off of surfaces

Defense 1: Hurricane Shield: Upgraded Whirlwind Shield. Instead of just deflecting attacks, it returns them
Defense 2: Tornado Armor: Aura encases herself in fast-moving winds, protecting her from attack as a last resort
Defense 3: Air Breath: Repels enemies and attacks by exhaling powerful gusts of wind

Special 1: Flight
Special 2: Deafen: Creates an area of intense low pressure to deafen enemies
Special 3: Vacuum: Removes air from an area to suffocate enemies
Special 4: Air Infusion: Empowers a person/creature/object of Aura's choosing with wind

Gender: Male

Size: 6'1"

Type: Aerial Swordsman

Personality: Aer is a quiet elemental being who prefers the quietude of an open prairie, rather than the loud, crowded theater of the arena, which he frequently makes known to Ven. However, thanks to Ven's stubborn desire to join the tournament, Aer had no choice but to follow along in his summoner's quest for fame and, possibly, fortune, the whole while finding his mind drifting back to the wide expanse of grass and wildflowers gently blowing in the breeze, even during combat. only when the life of his summoner is truly threatened will he fight seriously.

Abilities- Offensive: Windcutter: Creates a razor-sharp current of air that slices through it's target

Itto: Prime Stance: The katana is held high next to the head with the blade up, allowing Aer to either strike with devastating blows or quickly defend himself from attack

Itto: Quartes Stance: A more dangerous stance, Aer lowers the blade to his side or behind him, allowing for quick, powerful upward cuts

Defense: Parry

Air Wave Emission: Swings his sword and creates a wave of air which repels enemies and attacks

Special: Nito Style: Scorpion: Aer draws both his katana and the shorter wakisashi, the former he holds above his head and the latter horizontally in front of him, allowing him to defend and attack simultaneously

Pressurized Battōjutsu: Aer sheathes his sword and, at the last minute, draws and attacks, using the momentum from the initial swing, as well as a pressurized system of air around his hand and forearm, to slice at high-speed

Gender: Male

Size: Four feet from paw to shoulder

Type: Mist Wolf

Personality: Algor's mood can change as quickly as the wind itself. One moment, he'll be happy and friendly. The next, he may be prone to biting the hand of anyone who dares to get close, even if it's Ven's. Most of the time, however, Algor's usually in a state somewhere between the two extremes, which often leads to him finding an area by himself, where he broods quietly.

Abilities- Offensive: Claw flurry

Bite

Concussive Leap = Creates an intense area of low air pressure, then uses the resulting concussive blast to launch himself toward the enemy

Mist Blade = Tendrils of mist, edged with fast-moving air currents, slice at the enemy

Defense: Mist Shield

Dissolve: Algor briefly dissolves his body into a cloud of mist to avoid attacks

Mist Armor: Cloaks Algor's body in Mist, protecting him from attack as a last resort

Special: Mist Zone: Cloaks the area in mist, allowing Algor to sneak up on enemies

Enhanced Senses: Algor uses the air to increase his senses of smell and hearing

Mist Copy: Creates copies of himself out of mist

 

Name: Leite
Gender: Male
Size: 5 ft tall
Type: Crystal 
Personality: Leite is spontaneous and reckless, he acts without thinking frequently yet tries to listen to what Ambrielle has to say before acting. He trusts her a lot, since she's always looking out for him, and constantly helps him. He's the least bothered out of all the summons, by her sarcasm and occasional rudeness.

Abilities:
2 attack: Sharpen and constrict (Sharpens himself and wraps around opponent, crystal shards (Shoots crystal shards)
1 defense: Lonsdaleite body
1 special: Blind

Appearance:
Name: Kyuun
Gender: Female
Size: 4 ft
Type: Earth
Personality: Kyuun is childish in a way. She's a positive thinker and always hopes for the best, while also expecting the worst. She's very perceptive about others and how they feel, and she's quite caring for others. At the same time, she's quite sensitive and easily upset, although less so by Ambrielle, her sarcasm tends to drive her to become better to impress her.

Abilities:
3 attack: Razor Flowers, Earth spikes (Generates them under enemy), Rock charge (Body becomes hard as a rock and she charges.)
2 defense: Earth shield (Earth under her forms a shield around her), Earth drop (The earth directly under her gives, allowing her to go into the ground)
2 special: Dig, sleep scent.

Appearance:

Name: Pallakey
Gender: Male
Size: 7 ft
Type: Metal
Personality: Pallakey is very easygoing and relaxed. He's also happy-go-lucky and enjoys having fun, even if that fun is caused by his mischief. He tends to remain that way even in serious situations, and as a result he isn't taken that seriously. He and Ambrielle have disagreements more than any other summon, but he's quick to forgive and shrug it off.

Abilities:
4 attack: Metal tail whip, Spinning metal (Sends spinning sheets of metal), 
3 defense:
3 special: Gear creation