Unstable Element: Dynaellium

If blue mana was spent to cast Unstable Element: Dynaellium, exile target creature an opponent controls at random. At the beginning of the next end step, return that creature to the battlefield under its owner's control.
If red mana was spent to cast Unstable Element: Dynaellium, Unstable Element: Dynaellium deals 4 damage to target creature an opponent controls at random.
WARNING: Do Not Break, Unless Things Could Not Get Worse!!!