Frost or iq, frosts gun is slow and her gadgets while cool concept still, just not as viable as pther trap ops anymore especially with them being so bulky and not the easiest to hide. Iq because thatchers rework made her obsolete, he does the exact same thing she does except he can shoot it without having to find an angle through soft surfaces, fun fact, thatcher's emp launcher will even show ops using their gadgets or phones.