Shadowheart, Cleric of Trickery was first released in the set Alchemy Horizons: Baldur's Gate, illustrated by Cristi Balanescu

Water Energy Color : Blue Associated with : Water-type Pokemon Common effects : Healing, defensive abilities Weakness/Resistance : Usually weak to Electric, resists Fire Grass Energy Color : Green Associated with : Grass-type Pokemon Common effects : Healing, energy acceleration, poison Weakness/Resistance : Usually weak to Fire, resists Water Electric Energy Color : Yellow Associated with : Electric-type Pokemon Common effects : Paralysis, energy acceleration Weakness/Resistance : Usually weak to Fighting, resists Metal Psychic Energy Color : Purple/Pink Associated with : Psychic-type Pokemon Common effects : Confusion, card manipulation Weakness/Resistance : Usually weak to Dark, resists Fighting Fighting Energy Color : Orange/Brown Associated with : Fighting-type Pokemon Common effects : High damage, simple effects Weakness/Resistance : Usually weak to Psychic, resists Dark Dark Energy Color : Black/Dark Purple Associated with : Dark-type Pokemon Common effects : Disruption, damage manipulation Weakness/Resistance : Usually weak to Fighting, resists Psychic Metal Energy Color : Silver/Gray Associated with : Metal-type Pokemon Common effects : Damage reduction, energy efficiency Weakness/Resistance : Usually weak to Fire, resists Grass Fairy Energy Color : Pink/Light Purple Associated with : Fairy-type Pokemon Common effects : Healing, anti-Dragon effects Weakness/Resistance : Usually weak to Metal, resists Dragon Dragon Energy Color : Gold/Orange gradient Associated with : Dragon-type Pokemon Common effects : Requires multiple energy types Weakness/Resistance : Usually weak to Fairy, no resistance Colorless Energy - The Universal Power Colorless Energy is the Swiss Army knife of the Pokemon world

After that, it flips into Ultra Magnus, Armored Carrier and grants your whole attacking squad indestructible if their total power is high enough
Its the Nemesis (which is a Greek word) of Mortals
Its a 5/4 body with first strike for a total mana value of five, which is already pretty decent, but it also consistently creates tokens and can eventually become a way to draw cards