murder card mtg now has a Columbo inspired for its mystery set Murder (MKM-300) - Murders at

No Problem Although half his text is completely irrelevant, since you cant include his usual partner Regna in a Raphael list for color reasons, Krav is so synergistic with the deck that hes worth including anyway

Team Tactics Its totally possible that Team Tactics sees play in current Standard

But a demon that was locked inside the house took over it

Yep, landfall is that busted

Creature - Soldier Giant Frost Titan Whenever this creature becomes the target of a spell or ability an opponent controls, counter that spell or ability unless its controller pays

This is the third most-played tribe in Commander according to EDHREC.com and that is a really strong entry