Yep! Once you start getting into waves & fields all bets are off. High frequency electromagnetic radiation gets more and more wild if you back it up with enough power
Could be as safe as a radio transmission or as deadly as a submarine’s sonar pulse. All depends on the frequency and the power behind it (and where you direct it)
Holy shit $49 billy a gram for polonium 209 (from the first source I found).
I figured the easy one would be some rare hue of diamond but gdamn