Lieutenant Columbo

At the beginning of each end step investigate for each creature that left the battlefield this turn.
When you sacrifice a clue to draw a card you may instead choose one
• Scry 1.
• Add two mana of any one color.
• Target permanent gains protection from the color of your choice until end of turn.
{bull} Target creature can't be blocked until end of turn.

I'm bothering you, I know and i'm sorry, it's just one more thing