Lucario
Lucario uses his aura powers to deal damage and intercept enemies’ attacks on the battlefield.
“Lucario!”
Role: Damage
Position: Middle
Team: Blue
Basic Damage: Lucario sends a wave of aura dealing X damage to enemies
Entrance: Lucario comes out from a Pokeball that was thrown into battle.
Defeat: Lucario falls to his knees returning to his Pokeball.
White Skill⚪: Aura Storm
Fantastic Damage 
Lucario Mega-Evolves to Mega Lucario and sends a huge storm of aura to opponents knocking them back and dealing X damage.
Green Skill🟢: Flash Cannon
Normal Damage✊
Lucario unleashes a flash cannon that deals X damage to enemies and blinds them for 4 seconds.
The blind has a chance to fail against enemies over level Y.
Blue Skill🔵: Aura Intercept
Lucario now intercepts an incoming projectile from the enemy team ignoring the first X damage.
Purple Skill🟣: Aura Stun
“Aura Storm” and “Flash Cannon” now have a chance of stunning enemies for 4 seconds.
The stun does not affect enemies over level Y.
Red Skill🔴: Trainer’s Courage
Lucario can now intercept 75% more damage to convert that damage into armor or reality depending on what type of damage the enemy has dealt.
This is has a chance of not being effective against enemies over level Y.
+Z Reality
+Z Armor
+X damage to “Aura Storm”
Friendships
Lucario/Li Shang
Disk Name: Warrior’s Skill
+Z Skill Power
Lucario’s stun and blind length are increased by X seconds.
Lucario/Joy
Disk Name: Emotions Play
+Z Max HP
+X Skill Power
“Aura Intercept” can now heal Lucario’s health by X% of the amount of damage Lucario intercepted
Extra
This is my first concept, so I have much more to learn, so your feedback is greatly appreciated.
Sources: Pokemon(Green skill and Lucario), (White Skill) is from Super Smash Bros. Ultimate.