Since I haven’t done a hero concept in a good while, here’s Carapace from Miraculous Ladybug.
Name: Carapace
Quote: “So awesome! But aren’t you at least a bit surprised that I’m Carapace?”
Description: Carapace uses his Shellter to shield his allies and control enemies.
Role: Support
Position: Mid
Stars: 
Team: Blue
Victory: Carapace holds up his shield proudly.
Defeat: Tries to hold up his shield, but it falls down.
White Skill: Shell-ter!
Carapace hoists his shield up in the air, Cleansing himself of all debuffs, healing himself for X HP, and becoming Invincible for 8 seconds. Allies are shielded for X HP over the duration.
While shielded, Carapace’s allies also have their damage increased by 50% for 8 seconds.
Green Skill: Shell Bounce
Carapace throws his shield, dealing X damage and knocking back enemies and stunning them for 8 seconds. This attack also removes all active buffs from them.
The buff removal has a chance to fail if enemies are above level X.
Blue Skill: Hard Shell
If Carapace or an ally’s shield is removed before the duration reaches 0 seconds, they are granted Invincibility for 5 seconds per buff removed.
This buff cannot be removed or blocked by Fatigue.
The invincibility has a chance to fail for allies above level X.
Purple Skill: Turtle Tank
Each time Carapace uses Shell-ter, his maximum HP is increased by X and all damage he deals is increased by 50% for the rest of the wave. Additionally, enemies are Distracted by Carapace while he is Invincible.
The Distract has a chance to fail against enemies above level X."
Red Skill: Shell On!
While Allies are shielded, they gain 55% increased Attack Speed and 55% increased Movement Speed for 9 seconds.
Each use of Shell-ter now also increases the damage Carapace’s allies deal by 20% for the rest of the wave. This has a chance to fail on allies above level X
+X Max HP
+X Reality
+X damage to “Shell Bounce”
Battle Badge:
Is Charged When: Heroes perform 16 or more Basic Attacks
+X Basic Damage
+X Max HP per Tank Hero
- Heal (for self)
Friendships:
Carapace/Rena Rouge- Power Couple
Carapace and Rena Rouge both have to work together to discover a secret coup uncovered by a gang of villains, and they have to work together to stop them.
Allies: Shego, Basil, Kaa
Energy Gain on Shield
- Carapace gains 50 (+50 per star) Energy when he or an ally gain a shield. He can only gain Energy this way once every 4 seconds.
- +X Skill Power to Carapace and allies
- +X Basic Damage to Carapace and allies
- +X Max HP to Carapace and allies
Carapace/Gadget- Safety First
Gadget personally asks for Carapace’s help to use his shield to protect the Rescue Rangers from big dangers.
Allies: Buzz Lightyear, Ron Stoppable, Alice
Apply Sap When Enemy Shields are Destroyed
- When Carapace or an ally’s shield become destroyed, they are immediately sapped for 3 (+3 seconds per star) seconds.
- Enemies lose X Armor if they are sapped
- Enemies lose X Reality if they are sapped